Cema Chrome Steel Headset Bearing (41.8 x 30.1 x 6.5mm 45/45) JS09 Size:41.8 X 30.1 X 6.5MM 45/45 Contact surface area: 700 mm2

Contact surface area: 700 mm2

Long cage: 11-42 cassette

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0 Trail jacket is there to save the day when the weather suddenly changes

Cema Chrome Steel Headset Bearing (41.8 x 30.1 x 6.5mm 45/45) JS09 Size:41.8 X 30.1 X 6.5MM 45/45 Contact surface area: 700 mm2If you are a cyclist looking to make your bike lighter and help you boost your cycling performance, it is possible by upgrading to CEMA SRC bearings CEMA SRC Bearing series are specially designed for bicycle related applications such as wheel hubs, bottom brackets, and chain tensioner pulleys. Ceramic Bearings have been proved to reduce riders pedalling watts. CEMA SRC ceramic bearing series use G5 grade super high roundness silicon nitride ceramic