Shimano BB-RS501 Hollowtech II Italian Bottom Bracket CheckoutSpec= ZS44/28.6|EC44/40 Red Front and rear specific rims

Front and rear specific rims are optimized to address the specific performance requirements and loads of mountain biking

model Domain RC3 wheel size 29" steer (stem/race) tapered (28

Floating design compensates for thermal expansion with constant braking and self-centers to reduce drag

- Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 45–47mm and a minor diameter (inside of notches) of 44mm

Shimano BB-RS501 Hollowtech II Italian Bottom Bracket CheckoutSpec= ZS44/28.6|EC44/40 Red Front and rear specific rimsThe Shimano BB RS501 bottom bracket features an enhanced seal construction to provide long lasting performance and service life. Designed for a perfect fit with Hollowtech II 24mm crank spindles Anodized aluminum cups are high strength and light weight Bottom Bracket Shell I. D. 36 BB Frame Interface Italian BB Shell Width (mm) 70 Weight 93 Spindle Interface Type Shimano Hollowtech II Defined Color Silver keyword search RS 500 Interface Italian