Suitable for use with BOX One M30 Cranks and BB30 or PF30 frames.
- 30mm ID Drive bearing / 28mm ID NonDrive bearing
- Suits BOX ONE M30-P, ONE M30-M, & BOX Vector Two M30 cranks only*
- Suitable for BB30 (42mm ID), PF30 (46mm ID) BMX frames (68mm Road)**
Includes sleeve for PF30 frames**
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Cartridge Steel
30mm DRIVE / 28mm Non-DRIVE / ABEC 5 rating - Chromium steel bearings design
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Weight 130g
*Please note that these are NOT compatible with Box One M35, BOX Vector One cranksets