Replace A Shimano Hollowtech Bottom Bracket

Introduction

Shimano Hollowtech bottom brackets are quite common on modern road bikes, although other systems are regularly seen too. Shimano Hollowtech Bottom Brackets are fairly simple to remove and fit, although a special tool is required to remove the cranks. When replacing the cranks, make sure they are securely fastened, as a damaged pair can be expensive to replace.

This is a long guide, so you can choose to either watch the entire video above, or follow it in smaller chunks by clicking on the individual steps below.

Steps to Replace A Shimano Hollowtech Bottom Bracket: