Sale
Sale

4" Front Rim - Disk Brake Mount

  • $27.99

Swap out or upgrade your small-wheel vehicle’s front hub with the high-quality Universal Parts 4-Inch Split Front Wheel Rim. Designed for mini gas scooters and custom pocket bikes, this sturdy two-piece split rim makes tire and tube changes a breeze. It features a built-in disc brake rotor mount and premium 6000RS shielded bearings for smooth, stable performance and precise braking alignment.

  • Two-Piece Split Configuration: The bolt-together rim halves eliminate the struggle of stretching rigid beads over a solid wheel flange, protecting inner tubes from installation pinches.
  • Integrated Disc Brake Hub: Features a dedicated rotor side flange designed with a 15mm recessed offset to clear standard low-profile hydraulic or mechanical calipers.
  • Premium Shielded Bearings: Pre-assembled with dual 6000RS rubber-sealed ball bearings to lock out grit, road grime, and moisture for sustained rolling performance.

This compact front wheel rim is built for small-displacement gas scooters, light mobility carts, and custom recreational platforms. Review tire profile and platform compatibility below:

  • Wheel Rim Nominal Diameter: 4 Inches
  • Compatible Tire Layout: 9 x 3.50-4 Type
  • Internal Wheel Bearing Profile: 6000RS Sealed Matrix
  • Brake Rotor Side Bearing: The rotor side bearing is recessed 15mm
Target Tire Profiles Common Vehicle Applications
9 x 3.50-4
3.00-4
4.10/3.50-4
Stand-up gas scooters, vintage pocket bikes, micro go-karts, and light industrial material handling utility carts.

 

As Seen On As Seen On

Frequently Asked Questions