Shimano Alfine FC-S501 Crankset - 170mm 8/9-Speed 130BCD 39t 24mm Hollow Spindle Includes BSA Bottom Bracket BLK 898g New race compound - The

New race compound - The Booster utilizes a newly developed race compound that is fast and grippy especially on dry loose over hard and rough and rocky terrain

Extra Soft Soft Firm and Extra Firm elastomers sold separately

Basalt fibres for perfect flex characteristics regardless of temperature

2 Disc Brake Rotor - 180mm 6-Bolt Silver

Carbon fiber headset stack spacers precision cut to ensure proper headset function

Shimano Alfine FC-S501 Crankset - 170mm 8/9-Speed 130BCD 39t 24mm Hollow Spindle Includes BSA Bottom Bracket BLK 898g New race compound - TheThe Shimano Alfine FC S501 is a stylish 2 piece road crank with premium build quality that is great for city touring. Crank arms and chainguard crafted with durable and light weight aluminum 5 gears arms with 130mm BCD Includes Outbound BSA threaded bottom bracket for 68mm frames For front or rear 42. 7 Chainline Color Black Rings 39 Number of Chainrings Single Crank Length (mm) 170 Crank Intended Use Commute Drivetrain Speeds 9 Weight 977 BB Included