SHIMANO 105-FC 5700 Crankset Arm Material: aluminumArm Length: 170 mm, 172.5 mm, 175 mmBottom Bracket: not includedBB Type: BB Threading: EnglishBolts: Rings: 2Spindle: Compatible Components: Shimano 10-speedWeight: 770 gRecommended Use: race, trainManufacturer Warranty: 2 yearsBolt Circle Diameter: 130 mmChainring Sizes: 50 / 34, 53 / 39