Time to replace your worn-out American bearing?
The American US BMX Crank Bearing is designed for frames with a crank housing diameter of 51mm – often found on older bikes and entry-level bikes.
Notice: No cups for installation included.
$4.17

Time to replace your worn-out American bearing?
The American US BMX Crank Bearing is designed for frames with a crank housing diameter of 51mm – often found on older bikes and entry-level bikes.
Notice: No cups for installation included.
| Bottom Bracket | American (AMER) |
|---|---|
| Crank Axle Diameter | 51 |
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