Praxis Conversion BB - 73mm BB30/PF30 to Shimano Hollowtech II (MOUNTAIN)

Praxis Conversion BB - 73mm BB30/PF30 to Shimano Hollowtech II (MOUNTAIN)

SGD 127.50

Designed to be a proper BB for installing Shimano™ Hollowtech II cranks in either BB30 or PF30 mountain frames. Our patent pending design keeps the cartridge bearings outboard of the frame right on Shimano™ spec for greater rigidity and free of frame/c-clip tolerance issues that other systems deal with.

Simply press in the longer non-drive-cup, then the shorter drive cup threads into it. As the drive cup threads in, our trademark Collet system expands to a precise limit evenly dispersing pressure for a super tight fit. With both cups connected and our collet set exactly to spec, there is no chance the bearings can come out of alignment or wiggle/walk out of the frame. This design also uses a compressible o-ring on the non-drive side cup to compensate for frame shell width discrepancies.


      • This version for Shimano™ Hollowtech II cranks only.
      • Designed precisely to Shimano bearing stance & chain line spec.
      • Forged & machined heat-treated 7075 T6 Aluminum
      • For 73mm BB30 or PF30 mountain frames
      • Not for BBRight, BB386EVO, BB86, BB92 frames
      • Steel version: Enduro 2437
      • Ceramic Version: Enduro 2437 Angular contact, Grade5 Ceramic balls, ABEC5 Assembly
      • 68mm MTB frames shells not supported.  This BB only for 73mm MTB frame shell.
      • MTB Guides-ISCG05 Good, ST Mounted Good, ISCG03 Not Good




        Praxis Warranty Statement


        *This product ships to Singapore, Thailand, Philippines, Brunei, Cambodia, Vietnam & Indonesia. 
        *If your location is not listed above, check if there is a Distributor in your country here.
        *If there is no distributor in your country, we might be able to ship to you, just contact us for more information.