Specialized Stumpjumper Expert frame HT aluminium M5. Frame size M (18). For 26 inch wheels. The frame is in beautiful condition. This is the M5 anodised aluminium frame the most advanced technology Specialized introduced to 26 inch frames. This frame is from 2009 last year Specialized had 26inch bike in offer. Original headset included 1 1/8. Rear dropouts for 135mm hub QR. Full geometry spec in last photo. Please refer to size 18 in the spec. I’m also adding to the frame chain protector and seat post clamp.