Shimano BB-RS501 Hollowtech II Italian Bottom Bracket CheckoutSpec= ZS44/28.6|EC44/40 Red strength and long-term durability for

strength and long-term durability for everyday riding

15mm socket wrench for axle nuts

Shoe size 42 Gender Men Color Black Primary Color Black Closure Lace

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

Shimano BB-RS501 Hollowtech II Italian Bottom Bracket CheckoutSpec= ZS44/28.6|EC44/40 Red strength and long-term durability forThe 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