【Universal Function:】The bottom bracket tool fits bottom brackets with an outer diameter of 39-52 mm – compatible with 12, 16, and 24-tooth sprocket systems (model GK-BB02/03/04).
【Robust Stainless Steel Construction:】The bicycle centerlock tool's closed ring design prevents power loss and slippage – optimized for high torque when removing bottom brackets.
【GK-BB02:】Suitable for bottom brackets with outer diameters of 39 mm, 40.5 mm, and 44 mm – universal for three standard sizes.
【GK-BB03:】Compatible with outer diameters of 48.5 mm, 49 mm, and 52 mm (16-tooth sprockets). Also suitable for outer diameters of 45.6 to 46.6 mm (12- or 24-tooth sprockets).
【GK-BB04:】Designed for outer diameters of 48 mm, 49 mm, and 50 mm (12-tooth sprockets).
-15%
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