Shimano Alfine FC-S501 Bells and Horns Pair of N-type disc brake

Pair of N-type disc brake pads with fins

A light and stiff direct mount chainring with accurate Quarq power measurement elegantly hidden inside the DUB spindle lets you stealthily gather the data you need to progress

And if you're torn between this and the Expert

Combined with the attractive styling typical of the SLR range to produce a winning result

Shimano Alfine FC-S501 Bells and Horns Pair of N-type disc brakeUrban styled forged alloy crankset Perfect match with Alfine internal gear hubs Single chain guard 42T chainring 42. 7mm chainline BB included (SM BB4600) Attributes BB Inclusion Yes BCD 130 Chainline 42. 7mm Crank Arm Length 170mm Crank Spindle Diameter 24mm Crankset Material Aluminum Drivetrain Spacing MTB Interface Hollowtech II Pedals Thread 9 16'' Primary Color Black Speed 1 Teeth 42