United Supreme Mid Bottom Bracket
Best reliable upgrade for BMX riders needing a smooth, precise fit.
This is a no-nonsense upgrade for BMX riders who prioritize smooth rotation and durability over flashy aesthetics. By including multiple spacer sizes, it eliminates the guesswork of installation, though you will need to confirm your spindle diameter before committing to this reliable, precision-sealed setup.
$29.99
Who it's for
- Aggressive riders demanding components that withstand heavy impacts
- Riders seeking long-lasting, smooth performance in harsh conditions
- BMX owners needing easy compatibility with modern frame standards
Who should skip it
- Home mechanics lacking access to specialized bearing press tools
- Weight-conscious riders prioritizing the lightest possible bike setup
- Budget-focused shoppers looking for entry-level or generic alternatives
Performance breakdown
Bearing Smoothness
Precision sealed bearings deliver a consistent, friction-free rotation for BMX riding.
Installation Versatility
Included spacers make dialing in the perfect fit straightforward and hassle-free.
Build Durability
Rugged construction stands up well to the harsh impacts of street riding.
Weight Efficiency
Solid steel construction adds a bit of heft but ensures lasting reliability.
Compatibility Range
Standard 19mm and 22mm options cover the most common BMX cranksets.
Maintenance Ease
Sealed design keeps grime out, though bearings are not easily serviceable.
Key Specs
Weight
6.17oz / 175g
Size
19mm & 22mm
Type
Mid BB
Still have a question?
Ask Metto anything about the United Supreme Mid Bottom Bracket before you decide.
