Shimano Crank Set ´´Alfine´´ FC-S501 Hollowtech II, 170mm crank length, with integrated axle, with 68mm BSA bottom bracket 42 teeth, black, with two chainguard rings.Specifications:- Variation: set- Crank length: 170,0 mm- Amount of chain rings: 1- System compatibility: 8-speed, 9-speed- Bottom bracket: Hollowtech II- Large chain ring: 42 teeth- Material: aluminiumShimano Crank Set ´´Alfine´´ FC-S501 Hollowtech II, 170mm vevlängd, med integrerad axel, med 68mm BSA vevlager 42 tänder, svart, med två kedjeskydd.Specifikationer:- Variation: set- Vevlängd: 170,0 mm- Antal kedjeringar: 1- Systemkompatibilitet: 8-växlad, 9-växlad- Vevlager: Hollowtech II- Stor kedjering: 42 tänder- Material: aluminium