Shimano Alfine FC-S501 Crankset 170mm 42T Hollowtech

The Shimano Alfine FC-S501 is a sleek, city-ready crankset designed for internal-gear hub bikes, featuring stiff two-piece alloy arms paired with a 42T chainring for smooth, efficient cruising and an elegant look that complements the premium Alfine line. The 170 mm arm length is suitable for a wide range of riders, while the Hollowtech-style external BB interface keeps the system lightweight and robust. The twin chain guards help retain the chain while protecting your trousers during daily commutes and weekend tours.

- The FC-S501 offers a refined 42T gear feel that’s perfect for urban speed, fitness rides, and light trekking.
- Stiff two-piece alloy construction enhances power transfer and shifting feel while maintaining low weight and long-term durability.
- 170 mm crank arms promote a comfortable cadence and confident handling for a diverse range of rider heights.
- Compatible with Hollowtech II–style external bottom brackets for a smooth, reliable, and easy-to-service setup.
- Designed to work seamlessly with Alfine 8-speed and 11-speed internal-gear hub drivetrains for quiet, low-maintenance performance.
- Dual chain guards (inner and outer) enhance chain security and protect clothing for clean, everyday riding.
- The sleek, anodized finish and minimalist aesthetics complement modern commuter and city builds.
- A practical upgrade for riders seeking Alfine quality, tidy cable-free looks, and dependable all-weather performance.

Specifications
Brand: Shimano
Model: Alfine FC-S501
Type: Crankset
Length: 170mm
Size: 42 teeth
Color: Black