Praxis Conversion Bottom Bracket - Shimano Mtn BB30/PF30

This Conversion BB is for installing a Shimano Hollowtech II steel spindle crank in either BB30 or PF30 MTN frame. This bottom bracket is made of lightweight and durable aluminum with long lasting sealed cartridge bearings.

• 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