FSA Gossamer MegaExo Compact S10 170 34-50 Cranksets BB Shell Width: 68/70mmBB Thread Type: EnglishChain Compatibility: Shim/SRAM 10,Campagnolo 10Chainring BCD: 110mmChainrings: 34/50TCrank Color: BlackCrank/FD Type: Road CompactCrankarm Length: 170mmCrankarm Length: 170mmCrankset BCD: 110mmCrnk Clr: BlackInterface: MegaExoLength: 170mmPedal Spindle: 9/16"Rings: 34-50Speed: 2x10Spin: Not ApplicableSpindle Interface Type: MegaExoWeight: 905g