This is the bottom bracket kit for running Praxis M30 spindle cranks in a frame with BSA English threading. It covers the 68mm road shell and the 68/73mm MTB setup, with forged and machined heat treated aluminium cups.
Cartridge bearings run 30mm on the drive side and 28mm on the non drive side, and the ceramic version is rated Grade 5 / ABEC 5. Fitting it needs the Praxis M30 BB tool, which is sold separately.
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