Btwin F7 Carbon / Aluminum Hybrid Bike Frame. Aluminum frame & Carbon Rear triangle. 21 Frame – Centre of BB to Top tube. Top tube : 22″ / Downtube 24.5″. Overall frame is in excellent condition. Structurally sound with no cracks or dents. BB Threads All good with no cross threading. Paint works all good – no heavy rub wear marks. I’ve attached many pictures covering all angles. Please see them for detail. In perfect working order – Ready to be build. Specializing in re-cycled bike parts. World Wide P&P available. Quick 1 day dispatch time. Any questions will be happily answered?