SONDER Signal Titanium Hard-tailed Mountain Bike Frame – EXTRA LARGE. Signal Titanium 29er Hardtail Mountain Bike Frame. The Signal is fast, it’s for flat out fun. It pedals like an XC bike, descends like an enduro bike, and captures the rawness of riding a hardtail on fast, flowy singletrack. Stand up, sprint, and ride it hard on groomed descents at Llandegla and Glentress or take it to the big mountains and get loose. Fast and aggressive titanium 29er hardtail trail bike frame. Stiff, durable, and comfortable 3Al 2.5V Aeronautical grade titanium tubing. Guided internally routed cables for a clean look and silent ride. 66/74 head and seat angles eat up climbs and descents. Low BB and long wheelbase gives a planted and stable feel through the corners and on high speed descents, the low stack height leaves you with less of that’tall’ 29er feeling – you’ll feel like you’re in the bike, not on the bike. 29 in wheels can be paired with 2.2 to 2.6ins tyres with clearance for winter conditions. Please see our other listings for more bike bargains!