4-inch cast aluminum split rim 3-quarter view showing 3-spoke design hub with 3-hole bolt circle pre-installed sealed bearing and split seam 4-inch cast aluminum split rim 3-quarter view showing 3-spoke design hub with 3-hole bolt circle pre-installed sealed bearing and split seam
4-inch split rim axial end view showing two-piece split construction hub bore and seam through the barrel 4-inch split rim axial end view showing two-piece split construction hub bore and seam through the barrel
4-inch split rim half face-on view showing 3-spoke hub pattern 3-hole bolt circle, and pre-installed bearing 4-inch split rim half face-on view showing 3-spoke hub pattern 3-hole bolt circle, and pre-installed bearing
4-inch split rim disc brake side face-on view showing 3-spoke open design and pre-installed 6000RS bearing 4-inch split rim disc brake side face-on view showing 3-spoke open design and pre-installed 6000RS bearing
4-inch cast aluminum split rim 3-quarter view showing 3-spoke design hub with 3-hole bolt circle pre-installed sealed bearing and split seam
4-inch split rim axial end view showing two-piece split construction hub bore and seam through the barrel
4-inch split rim half face-on view showing 3-spoke hub pattern 3-hole bolt circle, and pre-installed bearing
4-inch split rim disc brake side face-on view showing 3-spoke open design and pre-installed 6000RS bearing

Universal Parts

Universal Parts 4" Rear Split Rim - Sprocket & Disc Mount

SKU 144-32
$24.00 Sold out
Shipping calculated at checkout.
Description

This Universal Parts 4-inch rear split rim is a two-piece cast aluminum split-rim assembly with a 3-spoke open design. The 2-sided 3-hole hub lets you run a sprocket on one side and a disc brake rotor on the other — both mounting faces use the same 33.5mm bolt pattern with M6x1.00 threads. 6000RS sealed bearings are pre-installed in both halves so the rim is ready to mount straight out of the box. The split-rim construction allows tire mounting and removal without tire irons.

Key Features

  • Two-Piece Cast Aluminum Split Rim: 3-spoke open design with visible split seam through the barrel.
  • 2-Sided 3-Hole Hub: Run a sprocket on one side and a disc brake rotor on the other — both sides use the same 33.5mm bolt circle.
  • Pre-Installed 6000RS Sealed Bearings: One bearing in each half — ready to mount out of the box.
  • Standard Bolt Pattern: 33.5mm sprocket/disc bolt spacing and 60mm rim bolt spacing — M6x1.00 threads throughout.
  • Split Rim Design: Two-piece construction for easy tubeless or tube-type tire mounting and removal.
  • Wide Tire Compatibility: Accepts 9x3.50-4, 3.00-4, and other standard 4-inch rim tire sizes.

Compatibility

Fits mini bikes, pocket bikes, gas-powered stand-up scooters, and small go-karts using 4-inch wheels with a 3-hole / 33.5mm bolt pattern. Tire and tube not included.

Technical Specifications

  • Rim Size: 4"
  • Construction: Two-piece cast aluminum, 3-spoke split rim
  • Hub: 2-sided, 3-hole (each side)
  • Sprocket/Disc Bolt Spacing: 33.5mm
  • Rim Bolt Spacing: 60mm
  • Thread Size: M6x1.00
  • Bearings: 6000RS sealed (pre-installed, one per half)
  • Compatible Tire Sizes: 9x3.50-4, 3.00-4, other standard 4" sizes
  • SKU: 144-32
Product Diagrams
Features
  • 2-sided 3-hole hub for sprocket and disc brake
  • Pre-installed 6000RS bearings
  • 33.5mm sprocket/disc brake bolt hole spacing
  • 60mm rim bolt hole spacing
  • M6x1.00 thread size
  • Split rim design for easy tire mounting
  • Fits 9x3.50-4, 3.00-4, and other 4-inch tire sizes
Specifications

Rim Size: 4" | Hub: 2-sided 3-hole | Sprocket/Disc Bolt Spacing: 33.5mm | Rim Bolt Spacing: 60mm | Thread: M6x1.00 | Bearings: 6000RS (pre-installed) | Tire Sizes: 9x3.50-4, 3.00-4
Model Fitments

Mini bikes, pocket bikes, gas-powered stand-up scooters, and small go-karts with 4-inch wheels and 3-hole / 33.5mm bolt pattern. Accepts 9x3.50-4, 3.00-4, and other standard 4-inch rim tire sizes.
  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period on eligible items
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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