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Shimano BB-MT800-PA is a bottom bracket for press-fit mounting in frames with 89 to 92 mm housing width and 41 mm bottom bracket diameter. It is recommended for XT, SLX, and groupless Hollowtech II compatible cranks with a 24 mm axle diameter. The bearing shells are made of resin.
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life.
- XT FC-M8100, FC-M8120, FC-M8130, FC-M8000, FC-T8000
- SLX FC-M7100, FC-M7120, FC-M7130, FC-M7000
- FC-MT700, FC-MT610, FC-MT600
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