DMR Axe Bottom Brackets

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- BB cups made by Praxis for DMR are sealed cartridge bearings for long-life - The BSA-threaded BB requires the specific M30 BB tool - Please Note: The DMR Axe crank uses a specifi c 30mm bottom bracket axle and is only compatible with the Axe Bottom Bracket by Praxis - Other 30mm crank systems and BB's are not cross-compatible Show more