To be the fastest, you want lightweight products, and at 133g the MXR BB is just that. This lightweight Euro bottom bracket has threaded CNC alloy cups, alloy spacers and 4 high quality sealed replaceable cartridge bearings.
- Euro Type 68mm BB shell (BSA)
- 19mm axle compatible (axle not included)
- Variable, adjustable chain line.
- 4 replaceable sealed bearings.
- Alloy CNC cups and spacer kit
View the full Gusset Components bottom bracket range click here.