Shimano BB-RS501 Hollowtech II English Bottom Bracket Bottom Fish and the proven R-Skin replaceable

and the proven R-Skin replaceable mohair insert means no need to grip wax to stay with the pack

The GOLD MONSTER turns beginners into professionals with fully automatic operation in an easy-to-use

0MM Drop:-

and over a decade later we have redesigned this best seller to help take your hang to the next level

Shimano BB-RS501 Hollowtech II English Bottom Bracket Bottom Fish and the proven R-Skin replaceableThe 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 Spindle Interface Type: Shimano Hollowtech II Series: Tiagra BB Shell Width: 68mm English, or 70mm Italian BB Frame Interface: choose; English, or Italian Weight: 92g. Color: Silver