Campagnolo FC-SR300/ Now FC-PO100 Record/Super Record 12 Speed Chainset Bolts. Q Factor 155mm. Crank length : 155mm. Shimano Dura-Ace 7900 10 Speed Double Chainset | 39/53T | FC-7900. Sprockets Ltd has been trading since March 2003 and is run by riders, for riders.
