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The Super B TB-8911 Crank Installation Tool is a simple, purpose-built bike tool for removing and installing crank arm adjustment caps. Made from nylon and engaging 8 internal splines, it's used together with a 6 mm hex key to get a secure, damage-free fit — a handy addition alongside any Hollowtech II style crankset service kit.
- Engages 8 internal splines of the crank arm adjustment cap
- Use with a 6 mm hex key to remove and install the cap
- Made from durable nylon