Praxis - BB CONV - Shimano 24mm MTB 73mm BB30/PF30

Availability: Ships 1-2 days
  • New updated design with Rubber expanding collet
  • This version for Shimano™ Hollowtech II steel spindle 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: Enduro2437
  • Ceramic Version: Enduro2437 Angular contact, Grade5 balls, ABEC5
  • 68mm MTB frames shells not supported by this BB.
  • MTB Guides-ISCG05 Good, ST Mounted Good, ISCG03 Not Good
  • Use two 16-notch BB tools for correct installation/removal. See instructions
  • Updated Rubber expanding Collet design | Patented Pending
  • “Rubber Collet” drive cup expansion for wiggle-free press
  • Non-Drive O-Ring compensates for frame width discrepancies


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