
Box Two Oversized 30mm Bottom Bracket
Box Two Oversized 30mm Bottom Bracket
Designed alongside Box cranksets, the M30 bottom bracket uses Oversized Technology to maximise pedalling stiffness and power transfer.
A larger 30mm spindle interface and oversized bearings reduce flex and improve efficiency, so more of your effort reaches the rear wheel. The result is smoother power delivery and quicker acceleration with less wasted energy.
Key Benefits
- Oversized design improves stiffness and power transfer
- Large ABEC-5 sealed bearings reduce deflection and drag
- 30mm interface pairs with Box/Praxis M30 cranksets
- Reinforced high-stress areas for durability
Specs
- Cups: Forged & CNC-machined alloy
- Sleeve: ABS plastic
- Bearings: ABEC-5 sealed
- Shell: BSA threaded, 68/73mm
- Compatibility: Box / Praxis M30 only
- Finish: Hard anodised (Black)
A reliable upgrade for riders wanting stronger, more efficient performance from their drivetrain.
Original: $96.56
-65%$96.56
$33.80Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Box Two Oversized 30mm Bottom Bracket
Designed alongside Box cranksets, the M30 bottom bracket uses Oversized Technology to maximise pedalling stiffness and power transfer.
A larger 30mm spindle interface and oversized bearings reduce flex and improve efficiency, so more of your effort reaches the rear wheel. The result is smoother power delivery and quicker acceleration with less wasted energy.
Key Benefits
- Oversized design improves stiffness and power transfer
- Large ABEC-5 sealed bearings reduce deflection and drag
- 30mm interface pairs with Box/Praxis M30 cranksets
- Reinforced high-stress areas for durability
Specs
- Cups: Forged & CNC-machined alloy
- Sleeve: ABS plastic
- Bearings: ABEC-5 sealed
- Shell: BSA threaded, 68/73mm
- Compatibility: Box / Praxis M30 only
- Finish: Hard anodised (Black)
A reliable upgrade for riders wanting stronger, more efficient performance from their drivetrain.














