Fairly sure 172.5 cranks too lazy to go into the garage!!!,casette 12-25 10 speed,Ha Ha this was my race bike hence it's hardly been used, I think Im better at training!!.Full spec is Cateye vectra wireless computer,Profile T2 bars,Continental GP 4000S tyres,Specialized saddle pack,Beto pump,Corima 45mm carbon clincher wheels with carbon specific brake blocks and normal dura ace ones as well(cartridge type easy change).Dura ace calipers,shifters,front and rear deralliers,Bontrager Giga x pipe carbon crankset,compact 50/34,Shimano pd5500 pedals if you want them(these aren't new),crane creak headset,bontrager saddle.One very light extreamly stiff,compliant carbon frame.