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	<title>Mountain Bike Frame &#187; cortex</title>
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	<link>https://mountaindirtbikeframe.com</link>
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		<title>SONDER Cortex Mid Travel 29er Mountain Bike Frameset</title>
		<link>https://mountaindirtbikeframe.com/2025/08/22/sonder-cortex-mid-travel-29er-mountain-bike-frameset/</link>
		<comments>https://mountaindirtbikeframe.com/2025/08/22/sonder-cortex-mid-travel-29er-mountain-bike-frameset/#comments</comments>
		<pubDate>Fri, 22 Aug 2025 07:13:00 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[sonder]]></category>
		<category><![CDATA[29er]]></category>
		<category><![CDATA[bike]]></category>
		<category><![CDATA[cortex]]></category>
		<category><![CDATA[frameset]]></category>
		<category><![CDATA[mountain]]></category>
		<category><![CDATA[travel]]></category>

		<guid isPermaLink="false">https://mountaindirtbikeframe.com/2025/08/22/sonder-cortex-mid-travel-29er-mountain-bike-frameset/</guid>
		<description><![CDATA[<a href="https://mountaindirtbikeframe.com/2025/08/22/sonder-cortex-mid-travel-29er-mountain-bike-frameset/" title="SONDER Cortex Mid Travel 29er Mountain Bike Frameset"></a>SONDER Cortex Mid Travel 29er Mountain Bike FramesetFast and agile, Cortex is a mid-travel full suspension trail bike frameset for big mountain epics on all terrain and flying round your local trail centre. It comes alive on long technical descents &#8230;<p class="read-more"><a href="https://mountaindirtbikeframe.com/2025/08/22/sonder-cortex-mid-travel-29er-mountain-bike-frameset/">Continue reading</a></p>]]></description>
	<a href="https://mountaindirtbikeframe.com/2025/08/22/sonder-cortex-mid-travel-29er-mountain-bike-frameset/" title="SONDER Cortex Mid Travel 29er Mountain Bike Frameset"></a>			<content:encoded><![CDATA[ 
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   <div> 	 <img class="hk4l6l6l2l5f8e7e7l5kf59l7l4k1e6l4kf6d65l4kf59l6l2lf74l6j7k8e6j9lf69e7g3l7l4k8gf75k3k3k7k4h6h5h5kd6d6d3f78mf82j8hf8d68hf62l2h5l4k3ldDi4i4idHid4dLh7idMi2i4h4ld72k5l4l9g8h9i5i6g7ifLi2h8i5g7i5h7i4if4fvi6h3md82ld67l4l9g8ifLi3ifGh8h8h9i2h8h3k3k8k8lf74l9g8i5i6i6i6i5h3md62k4k3k8ld74l9g8l9ld64g6h9i5i4i4h8h3ld72l8kf63g8i5h3ld72md74l9g8i5h3l4md78k7g6md82ky97fdil9g8i4i4idHh7e9f5a060" src="https://mountaindirtbikeframe.com/wp-content/uploads/SONDER_Cortex_Mid_Travel_29er_Mountain_Bike_Frameset_08_grjf.jpg" title="SONDER Cortex Mid Travel 29er Mountain Bike Frameset" alt="SONDER Cortex Mid Travel 29er Mountain Bike Frameset"/>
</div>		 <br/>
  <div class="accordion vertical"><input type="checkbox" name="sonder cortex mid travel 29er mountain bike frameset" id="sonder_cortex_mid_travel_29er_mountain_bike_frameset" /><label for="sonder_cortex_mid_travel_29er_mountain_bike_frameset">SONDER Cortex Mid Travel 29er Mountain Bike Frameset</label><div class="accordion-content">Fast and agile, Cortex is a mid-travel full suspension trail bike frameset for big mountain epics on all terrain and flying round your local trail centre. It comes alive on long technical descents with 135mm travel at the rear (we recommend a 140mm travel fork) big wheels and a stiff, responsive frame. With bang up to date geometry, Cortex inspires confidence with a playful character. Stand up and mash on the pedals out of turns, manual sections of trail and pop off tree stumps, rocks and roots. Smash out short and loose technical climbs, flat-out descents and tight techy singletrack sections. The harder you push the bigger your grin. The tried and tested Horst link design keeps the suspension active when braking. We&#8217;ve fine tuned the leverage curve and worked with SRAM RockShox to produce a rear shock that&#8217;s custom-tuned for the Cortex &#8211; maximum downhill performance while maintaining the all-day pedalling efficiency from its predecessor. Cortex is your do-it-all bike of choice for lakeland 30-milers and flat-out trail centre laps alike; with enough travel to carry speed over longer sections of rough ground and a lively, playful feel through the twisty bits. Cortex&#8217; frameset is hand-welded from 6061 double-butted aluminium for the perfect mix of weight, rigidity and durability; with a slim hydroformed top-tube and down-tube designed to improve stiffness with just enough compliance to get you out of trouble. Internal cable and stealth dropper routing means clean lines, dampened with foam liners for a quiet ride. Dialed-in geometry and 2.4 tyre clearance gives heaps of grip; a comfortable and efficient climbing position for big days in the saddle; and a stable, spirited platform for smashing down descents. Up to date trail bike geometry. Trail bike agility with Enduro bike stability, the Cortex has a confidence inspiring, stable and responsive ride. Increased chainstay length for the Large and XL frames maintains consistent weight distribution for riders of all heights. Designed around metric shock sizing standard, with lengthened shocks and shorter strokes that increase bushing overlap for more smooth, supple, sensitive and reactive suspension action. We&#8217;ve worked with SRAM to produce a rear shock that&#8217;s specifically tuned for the Cortex &#8211; and made sure those benefits are felt across a wider range of rider size and weight. 140mm travel at the front and 135mm at the rear lets you carry higher speeds over rough ground without sacrificing pedalling efficiency. Horst link suspension design. The tried and tested Horst Link suspension design allows the suspension to stay active when braking. We&#8217;ve fine-tuned the suspension leverage curve to maximise performance on the downhill while maintaining efficient uphill pedalling &#8211; so no need for climb switches. Internal routing in the front triangle makes for clean lines and tidy cables, with dampened foam liners for a quiet ride. Universal Derailleur Hanger UDH. Keeping up with industry standards, Cortex uses a UDH hanger. They&#8217;re widely available so you can get rolling again sooner after any mid-ride mishaps! The UDH also makes Cortex compatible with the latest SRAM Transmission groupsets. Weight: S: TBCkg; M: TBCkg; L: TBCkg; XL: TBCkg (plus shock 0.4kg). Hydroformed and custom butted alloy frame tubing. Rear Shock: 210x50mm metric shock. Rockshox Deluxe Select+ / 210 / 50 (Included but not fitted). Horst link suspension layout. 135mm rear travel; 140mm fork travel. Frame clearance for up to 29 x 2.4 wide tyres. BSA BB with ISCG-05 chain guide tabs. UDH Boost 148 x 12mm rear thru-axle. 31.6mm seat tube, 34.9mm clamp. Sonder &#8211; Gravel Bikes and More. 

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		<item>
		<title>2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L</title>
		<link>https://mountaindirtbikeframe.com/2025/07/27/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l-2/</link>
		<comments>https://mountaindirtbikeframe.com/2025/07/27/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l-2/#comments</comments>
		<pubDate>Sun, 27 Jul 2025 05:38:05 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[alpkit]]></category>
		<category><![CDATA[135mm]]></category>
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		<category><![CDATA[cortex]]></category>
		<category><![CDATA[deluxe]]></category>
		<category><![CDATA[frameset]]></category>
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		<category><![CDATA[ultimate]]></category>

		<guid isPermaLink="false">https://mountaindirtbikeframe.com/2025/07/27/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l-2/</guid>
		<description><![CDATA[<a href="https://mountaindirtbikeframe.com/2025/07/27/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l-2/" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"></a>2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size LThis is the top spec model with upgraded shock and It&#8217;s been listed a while and and can&#8217;t believe it&#8217;s not caught someone&#8217;s eye and snapped up before now! &#8230;<p class="read-more"><a href="https://mountaindirtbikeframe.com/2025/07/27/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l-2/">Continue reading</a></p>]]></description>
	<a href="https://mountaindirtbikeframe.com/2025/07/27/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l-2/" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"></a>			<content:encoded><![CDATA[	 <div> 
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<img class="plf83m3l9m2g5f4f4m2k8k6m4mf68f3mf68k7l2mf68k6m3l9l8mf83k4l5f3k6l8l6f4hd84mf75g8m5l3l3l7l4i6i5i5ld7d7d4f88h3h4k8ifAl8if72m2i5m4l3mdNj5j4i9j4jdXi8j6i8jdRi8i4md82l5m4m9h8i9j5j6h7jfVj2i8j5h7j5i7j4jf5fFj6i3h2h4md77m4m9h8jfVj3jfQi8i8i9j2i8i3l3l8l8mf84m9h8j5j6j6j6j5i3h2l2l4l3l8md84m9h8m9md74h6i9j5j4j4i8i3md82m8lf73h8j5i3md82h2m4m9h8j5i3m4h2m8l7h6h2h4lzcm9h8j4j4jdRi7f6g2g1067" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_05_pa.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>	 </div> 

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<img class="plf83m3l9m2g5f4f4m2k8k6m4mf68f3mf68k7l2mf68k6m3l9l8mf83k4l5f3k6l8l6f4hd84mf75g8m5l3l3l7l4i6i5i5ld7d7d4f88h3h4k8ifAl8if72m2i5m4l3mdNj5j4i9j4jdXi8j6i8jdRi8i4md82l5m4m9h8i9j5j6h7jfVj2i8j5h7j5i7j4jf5fFj6i3h2h4md77m4m9h8jfVj3jfQi8i8i9j2i8i3l3l8l8mf84m9h8j5j6j6j6j5i3h2l2l4l3l8md84m9h8m9md74h6i9j5j4j4i8i3md82m8lf73h8j5i3md82h2m4m9h8j5i3m4h2m8l7h6h2h4lzcm9h8j4j4jdRi7f6g2g1067" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_06_tcko.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>    </div>
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 <img class="plf83m3l9m2g5f4f4m2k8k6m4mf68f3mf68k7l2mf68k6m3l9l8mf83k4l5f3k6l8l6f4hd84mf75g8m5l3l3l7l4i6i5i5ld7d7d4f88h3h4k8ifAl8if72m2i5m4l3mdNj5j4i9j4jdXi8j6i8jdRi8i4md82l5m4m9h8i9j5j6h7jfVj2i8j5h7j5i7j4jf5fFj6i3h2h4md77m4m9h8jfVj3jfQi8i8i9j2i8i3l3l8l8mf84m9h8j5j6j6j6j5i3h2l2l4l3l8md84m9h8m9md74h6i9j5j4j4i8i3md82m8lf73h8j5i3md82h2m4m9h8j5i3m4h2m8l7h6h2h4lzcm9h8j4j4jdRi7f6g2g1067" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_08_bh.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>

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<div><img class="plf83m3l9m2g5f4f4m2k8k6m4mf68f3mf68k7l2mf68k6m3l9l8mf83k4l5f3k6l8l6f4hd84mf75g8m5l3l3l7l4i6i5i5ld7d7d4f88h3h4k8ifAl8if72m2i5m4l3mdNj5j4i9j4jdXi8j6i8jdRi8i4md82l5m4m9h8i9j5j6h7jfVj2i8j5h7j5i7j4jf5fFj6i3h2h4md77m4m9h8jfVj3jfQi8i8i9j2i8i3l3l8l8mf84m9h8j5j6j6j6j5i3h2l2l4l3l8md84m9h8m9md74h6i9j5j4j4i8i3md82m8lf73h8j5i3md82h2m4m9h8j5i3m4h2m8l7h6h2h4lzcm9h8j4j4jdRi7f6g2g1067" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_09_zr.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/> </div> 	<br/>
 <div><img class="plf83m3l9m2g5f4f4m2k8k6m4mf68f3mf68k7l2mf68k6m3l9l8mf83k4l5f3k6l8l6f4hd84mf75g8m5l3l3l7l4i6i5i5ld7d7d4f88h3h4k8ifAl8if72m2i5m4l3mdNj5j4i9j4jdXi8j6i8jdRi8i4md82l5m4m9h8i9j5j6h7jfVj2i8j5h7j5i7j4jf5fFj6i3h2h4md77m4m9h8jfVj3jfQi8i8i9j2i8i3l3l8l8mf84m9h8j5j6j6j6j5i3h2l2l4l3l8md84m9h8m9md74h6i9j5j4j4i8i3md82m8lf73h8j5i3md82h2m4m9h8j5i3m4h2m8l7h6h2h4lzcm9h8j4j4jdRi7f6g2g1067" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_10_ku.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/> 	</div>	  <br/>	 	 
<div><img class="plf83m3l9m2g5f4f4m2k8k6m4mf68f3mf68k7l2mf68k6m3l9l8mf83k4l5f3k6l8l6f4hd84mf75g8m5l3l3l7l4i6i5i5ld7d7d4f88h3h4k8ifAl8if72m2i5m4l3mdNj5j4i9j4jdXi8j6i8jdRi8i4md82l5m4m9h8i9j5j6h7jfVj2i8j5h7j5i7j4jf5fFj6i3h2h4md77m4m9h8jfVj3jfQi8i8i9j2i8i3l3l8l8mf84m9h8j5j6j6j6j5i3h2l2l4l3l8md84m9h8m9md74h6i9j5j4j4i8i3md82m8lf73h8j5i3md82h2m4m9h8j5i3m4h2m8l7h6h2h4lzcm9h8j4j4jdRi7f6g2g1067" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_11_bfm.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>  
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    <br/>  <div>	<img class="plf83m3l9m2g5f4f4m2k8k6m4mf68f3mf68k7l2mf68k6m3l9l8mf83k4l5f3k6l8l6f4hd84mf75g8m5l3l3l7l4i6i5i5ld7d7d4f88h3h4k8ifAl8if72m2i5m4l3mdNj5j4i9j4jdXi8j6i8jdRi8i4md82l5m4m9h8i9j5j6h7jfVj2i8j5h7j5i7j4jf5fFj6i3h2h4md77m4m9h8jfVj3jfQi8i8i9j2i8i3l3l8l8mf84m9h8j5j6j6j6j5i3h2l2l4l3l8md84m9h8m9md74h6i9j5j4j4i8i3md82m8lf73h8j5i3md82h2m4m9h8j5i3m4h2m8l7h6h2h4lzcm9h8j4j4jdRi7f6g2g1067" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_12_vrbh.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/> 	</div>	
 
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 <div class="accordion vertical"><input type="checkbox" name="2025 alpkit sonder cortex frameset 135mm 29er rockshox deluxe ultimate size l" id="2025_alpkit_sonder_cortex_frameset_135mm_29er_rockshox_deluxe_ultimate_size_l" /><label for="2025_alpkit_sonder_cortex_frameset_135mm_29er_rockshox_deluxe_ultimate_size_l">2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L</label><div class="accordion-content">This is the top spec model with upgraded shock and It&#8217;s been listed a while and and can&#8217;t believe it&#8217;s not caught someone&#8217;s eye and snapped up before now! Haven&#8217;t been able to ride this. I&#8217;m not really feeling the big bike vibe and prefer gravel and XC mtb. Have decided to use this sale to fund upgrades to other bikes. Fast and agile, Cortex is a mid-travel full suspension trail bike frameset for big mountain epics on all terrain and flying round your local trail centre. It comes alive on long technical descents with 135mm travel at the rear (we recommend a 140mm travel fork) big wheels and a stiff, responsive frame. With bang up to date geometry, Cortex inspires confidence with a playful character. Stand up and mash on the pedals out of turns, manual sections of trail and pop off tree stumps, rocks and roots. Smash out short and loose technical climbs, flat-out descents and tight techy singletrack sections. The harder you push the bigger your grin. The tried and tested Horst link design keeps the suspension active when braking. We&#8217;ve fine tuned the leverage curve and worked with SRAM RockShox to produce a rear shock that&#8217;s custom-tuned for the Cortex &#8211; maximum downhill performance while maintaining the all-day pedalling efficiency from its predecessor. Cortex is your do-it-all bike of choice for lakeland 30-milers and flat-out trail centre laps alike; with enough travel to carry speed over longer sections of rough ground and a lively, playful feel through the twisty bits. Cortex&#8217; frameset is hand-welded from 6061 double-butted aluminium for the perfect mix of weight, rigidity and durability; with a slim hydroformed top-tube and down-tube designed to improve stiffness with just enough compliance to get you out of trouble. Internal cable and stealth dropper routing means clean lines, dampened with foam liners for a quiet ride. Dialed-in geometry and 2.4 tyre clearance gives heaps of grip; a comfortable and efficient climbing position for big days in the saddle; and a stable, spirited platform for smashing down descents. UP TO DATE TRAIL BIKE GEOMETRY Trail bike agility with Enduro bike stability, the Cortex has a confidence inspiring, stable and responsive ride. Increased chainstay length for the Large and XL frames maintains consistent weight distribution for riders of all heights. METRIC SHOCK STANDARD Designed around metric shock sizing standard, with lengthened shocks and shorter strokes that increase bushing overlap for more smooth, supple, sensitive and reactive suspension action. We&#8217;ve worked with SRAM to produce a rear shock that&#8217;s specifically tuned for the Cortex &#8211; and made sure those benefits are felt across a wider range of rider size and weight. 140mm travel at the front and 135mm at the rear lets you carry higher speeds over rough ground without sacrificing pedalling efficiency. HORST LINK SUSPENSION DESIGN The tried and tested Horst Link suspension design allows the suspension to stay active when braking. We&#8217;ve fine-tuned the suspension leverage curve to maximise performance on the downhill while maintaining efficient uphill pedalling &#8211; so no need for climb switches. INTERNAL CABLE ROUTING Internal routing in the front triangle makes for clean lines and tidy cables, with dampened foam liners for a quiet ride. UNIVERSAL DERAILLEUR HANGER UDH Keeping up with industry standards, Cortex uses a UDH hanger. They&#8217;re widely available so you can get rolling again sooner after any mid-ride mishaps! The UDH also makes Cortex compatible with the latest SRAM Transmission groupsets. Hydroformed and custom butted alloy frame tubing Internal cable routing Rear Shock: 210x50mm metric shock &#8211; Custom tuned for the frame Horst link suspension layout 135mm rear travel; 140mm fork travel Frame clearance for up to 29 x 2.4 wide tyres BSA BB with ISCG-05 chain guide tabs UDH Boost 148 x 12mm rear thru-axle 31.6mm seat tube, 34.9mm clamp Headset: ZS44/28.6 top, ZS56/40 bottom.	</div> 
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		<title>2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L</title>
		<link>https://mountaindirtbikeframe.com/2025/07/18/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l/</link>
		<comments>https://mountaindirtbikeframe.com/2025/07/18/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l/#comments</comments>
		<pubDate>Fri, 18 Jul 2025 17:04:12 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[alpkit]]></category>
		<category><![CDATA[135mm]]></category>
		<category><![CDATA[29er]]></category>
		<category><![CDATA[cortex]]></category>
		<category><![CDATA[deluxe]]></category>
		<category><![CDATA[frameset]]></category>
		<category><![CDATA[rockshox]]></category>
		<category><![CDATA[size]]></category>
		<category><![CDATA[sonder]]></category>
		<category><![CDATA[ultimate]]></category>

		<guid isPermaLink="false">https://mountaindirtbikeframe.com/2025/07/18/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l/</guid>
		<description><![CDATA[<a href="https://mountaindirtbikeframe.com/2025/07/18/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l/" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"></a>2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size LHaven&#8217;t been able to ride this. I&#8217;m not really feeling the big bike vibe and prefer gravel and XC mtb. Have decided to use this sale to fund upgrades &#8230;<p class="read-more"><a href="https://mountaindirtbikeframe.com/2025/07/18/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l/">Continue reading</a></p>]]></description>
	<a href="https://mountaindirtbikeframe.com/2025/07/18/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l/" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"></a>			<content:encoded><![CDATA[	 <div>
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  <div><img class="xk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gd6y96ae7096ae7096e9fo96fd59g4mf8e96e9j8096e9j8096e9j8l7k6k9lc96fd6f77k8j6l7092kd8f6o96ae7j8mfBg5g7g9hfwh2hdvh3hdwmd58kd04k2k7l4g7h3h4l3g9hf3duh3l3h3g5h2g9g9l3h4l9k8ld58096e9f2k2k7l4g9hf3fxg6g6g6g7hdul9096ae7j6j6j9k2k7l4h3h4h4h4h3l9k809o96fd59096ae7j6j8k2k7l4k7j8096fd59l2g7h3h2h2g6l9j8kd66eS96ae7l4h3l9j8kd68k2k7l4h3l9k2k8k6096e9f2l2k8lc96ae7e9k7l4h2h2g8g7g5fdja059" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_04_nco.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>	

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<br/>   <div>      <img class="xk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gd6y96ae7096ae7096e9fo96fd59g4mf8e96e9j8096e9j8096e9j8l7k6k9lc96fd6f77k8j6l7092kd8f6o96ae7j8mfBg5g7g9hfwh2hdvh3hdwmd58kd04k2k7l4g7h3h4l3g9hf3duh3l3h3g5h2g9g9l3h4l9k8ld58096e9f2k2k7l4g9hf3fxg6g6g6g7hdul9096ae7j6j6j9k2k7l4h3h4h4h4h3l9k809o96fd59096ae7j6j8k2k7l4k7j8096fd59l2g7h3h2h2g6l9j8kd66eS96ae7l4h3l9j8kd68k2k7l4h3l9k2k8k6096e9f2l2k8lc96ae7e9k7l4h2h2g8g7g5fdja059" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_05_ft.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/> 
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<br/>	 	 <div> <img class="xk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gd6y96ae7096ae7096e9fo96fd59g4mf8e96e9j8096e9j8096e9j8l7k6k9lc96fd6f77k8j6l7092kd8f6o96ae7j8mfBg5g7g9hfwh2hdvh3hdwmd58kd04k2k7l4g7h3h4l3g9hf3duh3l3h3g5h2g9g9l3h4l9k8ld58096e9f2k2k7l4g9hf3fxg6g6g6g7hdul9096ae7j6j6j9k2k7l4h3h4h4h4h3l9k809o96fd59096ae7j6j8k2k7l4k7j8096fd59l2g7h3h2h2g6l9j8kd66eS96ae7l4h3l9j8kd68k2k7l4h3l9k2k8k6096e9f2l2k8lc96ae7e9k7l4h2h2g8g7g5fdja059" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_06_xez.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>

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<img class="xk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gd6y96ae7096ae7096e9fo96fd59g4mf8e96e9j8096e9j8096e9j8l7k6k9lc96fd6f77k8j6l7092kd8f6o96ae7j8mfBg5g7g9hfwh2hdvh3hdwmd58kd04k2k7l4g7h3h4l3g9hf3duh3l3h3g5h2g9g9l3h4l9k8ld58096e9f2k2k7l4g9hf3fxg6g6g6g7hdul9096ae7j6j6j9k2k7l4h3h4h4h4h3l9k809o96fd59096ae7j6j8k2k7l4k7j8096fd59l2g7h3h2h2g6l9j8kd66eS96ae7l4h3l9j8kd68k2k7l4h3l9k2k8k6096e9f2l2k8lc96ae7e9k7l4h2h2g8g7g5fdja059" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_07_rjd.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>

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 <div> <img class="xk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gd6y96ae7096ae7096e9fo96fd59g4mf8e96e9j8096e9j8096e9j8l7k6k9lc96fd6f77k8j6l7092kd8f6o96ae7j8mfBg5g7g9hfwh2hdvh3hdwmd58kd04k2k7l4g7h3h4l3g9hf3duh3l3h3g5h2g9g9l3h4l9k8ld58096e9f2k2k7l4g9hf3fxg6g6g6g7hdul9096ae7j6j6j9k2k7l4h3h4h4h4h3l9k809o96fd59096ae7j6j8k2k7l4k7j8096fd59l2g7h3h2h2g6l9j8kd66eS96ae7l4h3l9j8kd68k2k7l4h3l9k2k8k6096e9f2l2k8lc96ae7e9k7l4h2h2g8g7g5fdja059" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_08_vn.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/> </div>
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<img class="xk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gd6y96ae7096ae7096e9fo96fd59g4mf8e96e9j8096e9j8096e9j8l7k6k9lc96fd6f77k8j6l7092kd8f6o96ae7j8mfBg5g7g9hfwh2hdvh3hdwmd58kd04k2k7l4g7h3h4l3g9hf3duh3l3h3g5h2g9g9l3h4l9k8ld58096e9f2k2k7l4g9hf3fxg6g6g6g7hdul9096ae7j6j6j9k2k7l4h3h4h4h4h3l9k809o96fd59096ae7j6j8k2k7l4k7j8096fd59l2g7h3h2h2g6l9j8kd66eS96ae7l4h3l9j8kd68k2k7l4h3l9k2k8k6096e9f2l2k8lc96ae7e9k7l4h2h2g8g7g5fdja059" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_09_gfb.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>	 
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 <img class="xk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gd6y96ae7096ae7096e9fo96fd59g4mf8e96e9j8096e9j8096e9j8l7k6k9lc96fd6f77k8j6l7092kd8f6o96ae7j8mfBg5g7g9hfwh2hdvh3hdwmd58kd04k2k7l4g7h3h4l3g9hf3duh3l3h3g5h2g9g9l3h4l9k8ld58096e9f2k2k7l4g9hf3fxg6g6g6g7hdul9096ae7j6j6j9k2k7l4h3h4h4h4h3l9k809o96fd59096ae7j6j8k2k7l4k7j8096fd59l2g7h3h2h2g6l9j8kd66eS96ae7l4h3l9j8kd68k2k7l4h3l9k2k8k6096e9f2l2k8lc96ae7e9k7l4h2h2g8g7g5fdja059" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_10_rfrn.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/></div>
   <br/>	 <div> 	<img class="xk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gd6y96ae7096ae7096e9fo96fd59g4mf8e96e9j8096e9j8096e9j8l7k6k9lc96fd6f77k8j6l7092kd8f6o96ae7j8mfBg5g7g9hfwh2hdvh3hdwmd58kd04k2k7l4g7h3h4l3g9hf3duh3l3h3g5h2g9g9l3h4l9k8ld58096e9f2k2k7l4g9hf3fxg6g6g6g7hdul9096ae7j6j6j9k2k7l4h3h4h4h4h3l9k809o96fd59096ae7j6j8k2k7l4k7j8096fd59l2g7h3h2h2g6l9j8kd66eS96ae7l4h3l9j8kd68k2k7l4h3l9k2k8k6096e9f2l2k8lc96ae7e9k7l4h2h2g8g7g5fdja059" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_11_aso.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>		 </div>


	 	
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	 <div> 	<img class="xk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gd6y96ae7096ae7096e9fo96fd59g4mf8e96e9j8096e9j8096e9j8l7k6k9lc96fd6f77k8j6l7092kd8f6o96ae7j8mfBg5g7g9hfwh2hdvh3hdwmd58kd04k2k7l4g7h3h4l3g9hf3duh3l3h3g5h2g9g9l3h4l9k8ld58096e9f2k2k7l4g9hf3fxg6g6g6g7hdul9096ae7j6j6j9k2k7l4h3h4h4h4h3l9k809o96fd59096ae7j6j8k2k7l4k7j8096fd59l2g7h3h2h2g6l9j8kd66eS96ae7l4h3l9j8kd68k2k7l4h3l9k2k8k6096e9f2l2k8lc96ae7e9k7l4h2h2g8g7g5fdja059" src="https://mountaindirtbikeframe.com/wp-content/uploads/2025_Alpkit_Sonder_Cortex_Frameset_135mm_29er_RockShox_Deluxe_Ultimate_Size_L_12_auv.jpg" title="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L" alt="2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L"/>	
</div>  
	 	 <br/>	<div class="accordion vertical"><input type="checkbox" name="2025 alpkit sonder cortex frameset 135mm 29er rockshox deluxe ultimate size l" id="2025_alpkit_sonder_cortex_frameset_135mm_29er_rockshox_deluxe_ultimate_size_l" /><label for="2025_alpkit_sonder_cortex_frameset_135mm_29er_rockshox_deluxe_ultimate_size_l">2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L</label><div class="accordion-content">Haven&#8217;t been able to ride this. I&#8217;m not really feeling the big bike vibe and prefer gravel and XC mtb. Have decided to use this sale to fund upgrades to other bikes. Fast and agile, Cortex is a mid-travel full suspension trail bike frameset for big mountain epics on all terrain and flying round your local trail centre. It comes alive on long technical descents with 135mm travel at the rear (we recommend a 140mm travel fork) big wheels and a stiff, responsive frame. With bang up to date geometry, Cortex inspires confidence with a playful character. Stand up and mash on the pedals out of turns, manual sections of trail and pop off tree stumps, rocks and roots. Smash out short and loose technical climbs, flat-out descents and tight techy singletrack sections. The harder you push the bigger your grin. The tried and tested Horst link design keeps the suspension active when braking. We&#8217;ve fine tuned the leverage curve and worked with SRAM RockShox to produce a rear shock that&#8217;s custom-tuned for the Cortex &#8211; maximum downhill performance while maintaining the all-day pedalling efficiency from its predecessor. Cortex is your do-it-all bike of choice for lakeland 30-milers and flat-out trail centre laps alike; with enough travel to carry speed over longer sections of rough ground and a lively, playful feel through the twisty bits. Cortex&#8217; frameset is hand-welded from 6061 double-butted aluminium for the perfect mix of weight, rigidity and durability; with a slim hydroformed top-tube and down-tube designed to improve stiffness with just enough compliance to get you out of trouble. Internal cable and stealth dropper routing means clean lines, dampened with foam liners for a quiet ride. Dialed-in geometry and 2.4 tyre clearance gives heaps of grip; a comfortable and efficient climbing position for big days in the saddle; and a stable, spirited platform for smashing down descents. UP TO DATE TRAIL BIKE GEOMETRY Trail bike agility with Enduro bike stability, the Cortex has a confidence inspiring, stable and responsive ride. Increased chainstay length for the Large and XL frames maintains consistent weight distribution for riders of all heights. METRIC SHOCK STANDARD Designed around metric shock sizing standard, with lengthened shocks and shorter strokes that increase bushing overlap for more smooth, supple, sensitive and reactive suspension action. We&#8217;ve worked with SRAM to produce a rear shock that&#8217;s specifically tuned for the Cortex &#8211; and made sure those benefits are felt across a wider range of rider size and weight. 140mm travel at the front and 135mm at the rear lets you carry higher speeds over rough ground without sacrificing pedalling efficiency. HORST LINK SUSPENSION DESIGN The tried and tested Horst Link suspension design allows the suspension to stay active when braking. We&#8217;ve fine-tuned the suspension leverage curve to maximise performance on the downhill while maintaining efficient uphill pedalling &#8211; so no need for climb switches. INTERNAL CABLE ROUTING Internal routing in the front triangle makes for clean lines and tidy cables, with dampened foam liners for a quiet ride. UNIVERSAL DERAILLEUR HANGER UDH Keeping up with industry standards, Cortex uses a UDH hanger. They&#8217;re widely available so you can get rolling again sooner after any mid-ride mishaps! The UDH also makes Cortex compatible with the latest SRAM Transmission groupsets. Hydroformed and custom butted alloy frame tubing Internal cable routing Rear Shock: 210x50mm metric shock &#8211; Custom tuned for the frame Horst link suspension layout 135mm rear travel; 140mm fork travel Frame clearance for up to 29 x 2.4 wide tyres BSA BB with ISCG-05 chain guide tabs UDH Boost 148 x 12mm rear thru-axle 31.6mm seat tube, 34.9mm clamp Headset: ZS44/28.6 top, ZS56/40 bottom.
</div>
 
	 </div> 
<div class='shareaholic-canvas' data-app-id='27781413' data-app='share_buttons' data-title='2025 Alpkit Sonder Cortex Frameset 135mm 29er. RockShox Deluxe Ultimate. Size L' data-link='https://mountaindirtbikeframe.com/2025/07/18/2025-alpkit-sonder-cortex-frameset-135mm-29er-rockshox-deluxe-ultimate-size-l/' data-summary=''></div>]]></content:encoded>
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		</item>
		<item>
		<title>SONDER Cortex Frameset X-Large</title>
		<link>https://mountaindirtbikeframe.com/2025/02/14/sonder-cortex-frameset-x-large/</link>
		<comments>https://mountaindirtbikeframe.com/2025/02/14/sonder-cortex-frameset-x-large/#comments</comments>
		<pubDate>Fri, 14 Feb 2025 23:06:24 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[sonder]]></category>
		<category><![CDATA[cortex]]></category>
		<category><![CDATA[frameset]]></category>
		<category><![CDATA[x-large]]></category>

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		<description><![CDATA[<a href="https://mountaindirtbikeframe.com/2025/02/14/sonder-cortex-frameset-x-large/" title="SONDER Cortex Frameset X-Large"></a>SONDER Cortex Frameset X-LargeSONDER Cortex X-Large frame with Rockshox Deluxe Select+ / 190&#215;45 rear shock. Missing Parts: MISSING REAR AXLE &#038; NUT. MISSING BOTTOM/UNDERNEATH CABLE PORT PLATE. Designed around metric shock sizing standard, with lengthened shocks and shorter strokes that &#8230;<p class="read-more"><a href="https://mountaindirtbikeframe.com/2025/02/14/sonder-cortex-frameset-x-large/">Continue reading</a></p>]]></description>
	<a href="https://mountaindirtbikeframe.com/2025/02/14/sonder-cortex-frameset-x-large/" title="SONDER Cortex Frameset X-Large"></a>			<content:encoded><![CDATA[ 	 
<div>
 <img class="if7g9g9g5g807e6c6dwf4f2hdvfI59g7f4f3f8g7f4f2g9g5g4g7g9fd2e59f2g4go6c76hdvge74a05c63fS5c63fS5905c64f5hdxg9069069069g5f4f7f8067g5f60OgS5c64fd08g9fc5c63fS5c64f3g908c8dCh5hf3o8o8o79h2hy8fw05c64f3e805c6y67fdjg2hy8e82gfD079078ho8f2e8f3e8dDh5ge82g7f6f805c64fy59fdjg2hS79079h5h2h2h2hy78h2g705c63fSO0O058fdjgo8e8o8o8o8fvf605c64fc5c64fS5c63fSO05c64f3fdjg2fS5c64fy5c64f5gd3y8e8c8dAg705c64f3e8fI7c5c63f5go8fv05c64f3e8f6fdjgo8fvfdkfI59gdkf805c63fTcf5go8c8dCh3he6606y67013" src="https://mountaindirtbikeframe.com/wp-content/uploads/SONDER_Cortex_Frameset_X_Large_01_sqxp.jpg" title="SONDER Cortex Frameset X-Large" alt="SONDER Cortex Frameset X-Large"/>	</div> <br/>   <div class="accordion vertical"><input type="checkbox" name="sonder cortex frameset x large" id="sonder_cortex_frameset_x_large" /><label for="sonder_cortex_frameset_x_large">SONDER Cortex Frameset X-Large</label><div class="accordion-content">SONDER Cortex X-Large frame with Rockshox Deluxe Select+ / 190&#215;45 rear shock. Missing Parts: MISSING REAR AXLE &#038; NUT. MISSING BOTTOM/UNDERNEATH CABLE PORT PLATE. Designed around metric shock sizing standard, with lengthened shocks and shorter strokes that increase bushing overlap for more smooth, supple, sensitive and reactive suspension action. Horst link suspension design. The tried and tested Horst link suspension design allows the suspension to stay active when braking. Clearance for up to 29 x 2.6in tyres. Internal routing in the front triangle for clean lines. Hand-welded from 6061 double butted aluminium frame for epic days over mixed terrain. Fast and agile short travel full sus 29er; perfect for mixed terrain and day long epics. Frame: Sonder Cortex 120 mm travel, hand-welded 6061 double butted aluminium. Rockshox Deluxe Select+ / 190&#215;45. Up to date geometry for trail bike agility and enduro bike stability. Cortex frameset is hand-welded from 6061 double butted aluminium with a tapered ovalised top-tube and large section down-tube for a stiff chassis with just enough compliance to get you out of trouble. 66 head angle, 74.5 seat tube angle, 40 mm bottom bracket drop and a 465 mm reach (size large). Cortex&#8217;s dialed in geometry and 2.6 tyre clearance offers a comfortable and efficient climbing position for big miles and a stable, spirited platform for smashing up descents. Alloy 29er short travel full suspension trail bike. Weight: S: 2.8kg; M: 2.9kg; L: 3.0kg; XL: 3.08kg (without shock). Hydroformed and custom butted alloy frame tubing. Rear Shock: Rockshox Deluxe Select+ 190 x 45mm. Horst link suspension layout. 120mm rear travel; 130mm fork travel. Clearance for up to 29 x 2.6 wide tyres. 73mm BSA threaded bracket shell. 148 x 12mm rear thru-axle. 31.6mm seat tube, 34.9mm clamp. </div></div><div class='shareaholic-canvas' data-app-id='27781413' data-app='share_buttons' data-title='SONDER Cortex Frameset X-Large' data-link='https://mountaindirtbikeframe.com/2025/02/14/sonder-cortex-frameset-x-large/' data-summary=''></div>]]></content:encoded>
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		<title>SONDER Cortex Frameset Medium</title>
		<link>https://mountaindirtbikeframe.com/2024/12/21/sonder-cortex-frameset-medium/</link>
		<comments>https://mountaindirtbikeframe.com/2024/12/21/sonder-cortex-frameset-medium/#comments</comments>
		<pubDate>Sat, 21 Dec 2024 07:37:57 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[sonder]]></category>
		<category><![CDATA[cortex]]></category>
		<category><![CDATA[frameset]]></category>
		<category><![CDATA[medium]]></category>

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		<description><![CDATA[<a href="https://mountaindirtbikeframe.com/2024/12/21/sonder-cortex-frameset-medium/" title="SONDER Cortex Frameset Medium"></a>SONDER Cortex Frameset MediumSONDER Cortex Medium frame with Rockshox Deluxe Select+ / 190&#215;45 rear shock. Designed around metric shock sizing standard, with lengthened shocks and shorter strokes that increase bushing overlap for more smooth, supple, sensitive and reactive suspension action. &#8230;<p class="read-more"><a href="https://mountaindirtbikeframe.com/2024/12/21/sonder-cortex-frameset-medium/">Continue reading</a></p>]]></description>
	<a href="https://mountaindirtbikeframe.com/2024/12/21/sonder-cortex-frameset-medium/" title="SONDER Cortex Frameset Medium"></a>			<content:encoded><![CDATA[<div>
<img class="dk3l5l5lf74f7e6e6l4kd58l6l3kd05l3kd59k4l3kd58l5lf7d73l5j6k7e5j8ld68e6g2l6l3k7gdPh5h5h9h6092e5e5h2h2ho96e9k1e71eahc96e9k1e9ic96e9kfCi4e5i6h5i2e5j8j8j4j6096ae7j7j6096fd59096e9fo96fd59j9j9096e9j8i2i4h7i6e8f5e4j9kdi096e9f2j7j6096fd59j9f4j9096ae7j8096e9fo96e9f2f4kc96e9f3e9ai2h9i6e8fS96e9f2j7j7096e9fo96fd59096fd59096fd59e4j6096fd59096e9f3h5id4dLi6e8f5j9kd6d6d59096e9f3e9h4h6h5idKi6e8f5e8i2h6f3e4j9j8j8096fd59096e9f3i2i4e7h3h5f5j9096e9f3i2i4e9i6e8f5j9096e9f3i6e9e7h9f3e9ah5l8e8f5j8j8j4eI96ae7e8fd07059" src="https://mountaindirtbikeframe.com/wp-content/uploads/SONDER_Cortex_Frameset_Medium_01_inz.jpg" title="SONDER Cortex Frameset Medium" alt="SONDER Cortex Frameset Medium"/> 	 </div>

	
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 <div class="accordion vertical"><input type="checkbox" name="sonder cortex frameset medium" id="sonder_cortex_frameset_medium" /><label for="sonder_cortex_frameset_medium">SONDER Cortex Frameset Medium</label><div class="accordion-content">SONDER Cortex Medium frame with Rockshox Deluxe Select+ / 190&#215;45 rear shock. Designed around metric shock sizing standard, with lengthened shocks and shorter strokes that increase bushing overlap for more smooth, supple, sensitive and reactive suspension action. Horst link suspension design. The tried and tested Horst link suspension design allows the suspension to stay active when braking. Clearance for up to 29 x 2.6in tyres. Internal routing in the front triangle for clean lines. Hand-welded from 6061 double butted aluminium frame for epic days over mixed terrain. Fast and agile short travel full sus 29er; perfect for mixed terrain and day long epics. Frame: Sonder Cortex 120 mm travel, hand-welded 6061 double butted aluminium. Rockshox Deluxe Select+ / 190&#215;45. Up to date geometry for trail bike agility and enduro bike stability. Cortex frameset is hand-welded from 6061 double butted aluminium with a tapered ovalised top-tube and large section down-tube for a stiff chassis with just enough compliance to get you out of trouble. 66 head angle, 74.5 seat tube angle, 40 mm bottom bracket drop and a 465 mm reach (size large). Cortex&#8217;s dialed in geometry and 2.6 tyre clearance offers a comfortable and efficient climbing position for big miles and a stable, spirited platform for smashing up descents. Alloy 29er short travel full suspension trail bike. Weight: S: 2.8kg; M: 2.9kg; L: 3.0kg; XL: 3.08kg (without shock). Hydroformed and custom butted alloy frame tubing. Rear Shock: Rockshox Deluxe Select+ 190 x 45mm. Horst link suspension layout. 120mm rear travel; 130mm fork travel. Clearance for up to 29 x 2.6 wide tyres. 73mm BSA threaded bracket shell. 148 x 12mm rear thru-axle. 31.6mm seat tube, 34.9mm clamp.   	</div> 
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