Blackwell 50mm Carbon Clincher Cassette Body, Bearings and Internals

When picking up a pair of the Blackwell Wheels, we need you to specify which system you are running. Shimano and Campy take different cassette bodies, but so does SRAM Red (PowerDome). SRAM is compatible with the 9 speed Shimano Hub, but not the new Shimano 10. The difference is that the splines on the Shimano 10 are too tall to accept the SRAM Red cassette.

Changing the cassette body is very straight forward as the instructions from Blackwell are clear and well illustrated. Making the change gave me chance to take a look at the internals of the Blackwell hub on the 50mm carbon clinchers.

The tall splined Shimano 10 cassette body.

The older style Shimano 9/SRAM compatible.

Six pawls on the inside means excellent engagement.

Bearings are high grade EZO 6901 (non-drive) and 6902 (drive) series. Check the EZO site here (http://www.ezo-brg.co.jp/english/technology/tec_s/s_003.html) if you are interested in the details. High quality, easily replaceable stuff.

Read about my first 100 km on these.