Grade 300 loose ball bearings from Wheels Manufacturing, sized 5/32" and supplied in a bottle of 500 for a cost-effective cup and cone bearing service.

Highlights

  • 5/32" diameter, Grade 300 precision
  • Wheels Manufacturing describes Grade 300 as Ultegra quality
  • Bottle of 500 loose balls
  • An economical, acceptable replacement for most OEM loose bearings

When to use Grade 300

Wheels Manufacturing recommends Grade 300 for low to medium quality componentry, or where the cup and cone are not machined; use Grade 25 or better where both are machined.

Compatibility & fit

Fits many brands of loose-ball, cup-and-cone hubs, headsets and bottom brackets in 5/32" diameter; confirm your existing ball size before ordering. Tune's workshop can carry out the bearing service.

Wheels Manufacturing backs its loose ball bearings with a 12-month warranty against manufacturing defects, plus a 30-day return window (wheelsmfg.com).

For warranty support, return the product to Tune Cycles and we'll manage the claim with Wheels Manufacturing's Australian distributor.

  • 5/32" diameter Grade 300 ball bearings
  • Bottle of 500 balls
  • Ultegra-quality grade (Wheels Manufacturing)
  • Economical option for cup-and-cone hubs, headsets and bottom brackets
Diameter5/32"
GradeGrade 300
Quantity500 balls per bottle
Recommended useLow to medium quality or non-machined cup and cone components
SKU SCV-WMBG-BALL-02B
Brand Wheels MFG
Shipping Weight 0.0500kg
Shipping Width 0.160m
Shipping Height 0.060m
Shipping Length 0.220m