Shimano fc-t521 octalink crankset w/ chain guardProduct Description Shimano FC-T521 with chain guard - The Octalink crankset for city & touring The Shimano FC-T521 is an Octalink crankset for 10-speed touring drivetrains. Although it has no groupset, it meets the quality criteria of comparable LX components, for example with regard to the smoothness of shifting or the shapely integration of the chain guard ring as well as chain case compatibility. Hollow forged crank arms (Hollowtech technology) provide stability with the lowest possible weight. The crank comes with three chainrings (104/64 mm bolt circle diameter), which are attached to a 4-arm spider. You have the choice between a black and a silver version. Specifications:Application:City & TouringCompatibility:Shimano 3x10-speedChainring Mount:104/64 mm bolt circle diameter, 4-armTechnical Information:Crank Arm Material:aluminiumChainring Material:aluminium / steel-fibreglass composite (32 T), steel (36 T) / steelGradation:24-32-44, 26-36-48Crank Arm Length:170.0 mm, 175.0 mmCha…106,99