Upgrade your workshop with the RC-B937BB socket – engineered for seamless compatibility with Shimano Hollowtech II bottom brackets.
Designed to fit perfectly with the plastic adapter rings included with models like BBR60 and BB9000, it works as a direct replacement for the Shimano TL-FC32 wrench.
Wherever a TL-FC32 is required, the RC-B937BB delivers the same precision with improved convenience and durability.