- B52 Technology
- ABS Plastic Sleeve
- BB30 or PF30 Compatible
- Outboard Bearings
- Enduro™ Bearings
- Oversized™ 35mm
- Oversized Technology™
- Compatibility: Box One™ M35 only
- Shell: PF30 or BB30 only
- Spindle Type: Box/Praxis™ M35 only
- Weight: 138 grams / 4.9 ounces
**It does NOT include a drive-side bottom bracket seal.