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SM-BB9000 bottom bracket cups for the new Dura Ace Hollowtech II crankset FC-9000
- Polar A300
Includes mount and 2 fitting shims
The Muc-Off Bike Care Essentials Kit contains all the basic elements you need to be able to look after your bicycle
Contains Bike Spray for post-wash protection against rust & corrosion
Shimano SLX Cassette (CS-HG81) 11-36 inReach Mini SM-BB9000 bottom bracket cups forShimano presents a completely new drivetrain technology for mountain bikes: Dyna Sys. This revolutionary technology uses a 10 speed cassette, but that is not the only feature of this new system. Highlight is a completely redesigned drivetrain that creates real added benefits to the rider. Features Dyna Sys Its not only an extra gear Its about closer gear ratios for a smoother shifting performance and improved power transfer Its about riding optimized
