Answering the common search for durable, compatible mini bike rear wheel hubs and related parts, this guide highlights five solid options. Each pick targets riders building or upgrading small bikes like Z50, Coleman CT100U, or Meg/Mega Moto styles. The top picks are best for dedicated hobbyists, color-meets-performance enthusiasts, and DIY builders seeking reliable, easy-to-install hubs and rims.

Summary table of selected products:

Product Brand Key Feature Best For
Mini Bike Rear Hub. CNC Alloy Rear Wheel Hub KART SUPPLY 12 mm bearings, 12 mm axle compatibility Custom mini bikes, 12mm axles
XIKOBY 145/70-6 Rear Wheel with Sprocket XIKOBY Wide compatibility with 145/70-6 tires Multiple mini bike brands
Mega Moto/Motovox Mini Bike Wheel 6 Inch Dual Flange KART SUPPLY Dual flange design Mega Moto, Coleman, Doodlebug
Z-50 Mini Bike Hub set. Front & Rear KART SUPPLY Complete hub set for 12mm axles Custom Z50/Monkey wheels
JMCHstore 6” Wheel Rim for Coleman CT100U JMCHstore Perfect fit 6″ rear rim Coleman CT100U family

Mini Bike Rear Hub For Z50 Monkey Wheels


Mini Bike Rear Hub. CNC Alloy Rear Wheel Hub For Z50 Monkey. 12mm. Silver

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Reference: Works with Z 50 Monkey wheels. 12 mm bearings. Great for custom mini bike wheels. This hub is best for builders focusing on 12 mm axle setups and a clean CNC alloy build. Choose this if your project uses Z50/Montgomery-style Monkey wheels and you want a precise, lightweight rear hub.

Caution: Designed for 12 mm axles; verify axle size on your frame before ordering.

XIKOBY 145/70-6 Rear Wheel With Sprocket


XIKOBY 145/70-6 Mini Bike Rear Wheel with Sprocket

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Reference: Fits 145/70-6 tires with rims and is compatible with a range of mini bikes including Coleman, Motovox, Baja, Monste/Mega Moto, Trailmaster, and more. This makes it a strong choice for builders who want a single wheel to fit multiple models. Best for multi-brand projects needing a reliable 145/70-6 wheel and rim assembly.

Caution: The listing notes broad compatibility; confirm specific model fit before purchase to avoid misfitment on unique frames.

Mega Moto/Motovox 6 Inch Dual Flange Wheel


Mega Moto/Motovox Mini Bike Wheel 6 Inch Dual Flange

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Reference: Fits Mega Moto B80, B150, E1000, Coleman 100, and Doodlebugs. The dual flange design can improve wheel rigidity and braking surface alignment. Best for riders prioritizing a robust 6″ wheel with added flange support for smoother handling on small-bore minibikes.

Caution: May require specific brake hub compatibility; confirm your brake system matches the wheel’s flange design.

Z-50 Mini Bike Hub Set Front & Rear


Z-50 Mini Bike Hub set. Front & Rear

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Reference: Includes both rear and front hub sets for Z50 and Monkey wheels, designed for 12 mm axles. Best for projects that require a complete hub upgrade to ensure balanced wheel rotation and consistent tire performance.

Caution: Ensure you need both front and rear hubs; single-hub purchases may not meet all project needs.

JMCHstore 6” Rear Wheel Rim For Coleman CT100U


JMCHstore 6'' Wheel Rim for Coleman CT100U

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Reference: 6″ rear wheel rim designed for Coleman CT100U CC100X, with a focus on proper fit and easy installation. Best for CT100U owners seeking a precise rear rim replacement that matches the model’s dimensions and mounting. The durable silver finish adds a clean look to rebuilds.

Caution: Verify compatibility with your exact CT100U variant and tire size; misfit can lead to installation issues.

RZEOZU 145/70-6 Tire and Rear Wheel Kit


RZEOZU 145/70-6 Tires and Rear Wheels Rim Assembly Kit

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Reference: Replacement kit for Coleman’s CT100U CC100X and similar minibikes, using 145/70-6 tires with 6″ rims and 12 mm axles. Best for builders needing a full kit that simplifies installation and alignment for a consistent ride.

Caution: The kit’s broad compatibility means verifying exact model fit is essential before purchasing to avoid mismatches.

Buying Guide

What should you consider before buying a mini bike rear wheel hub or rim kit?

  • Axle size compatibility: Most mini bikes use 12 mm axles; confirm your model’s axle diameter before ordering.
  • Rim and tire compatibility: Check rim diameter and tire width (common sizes include 6″ rims and 145/70-6 tires) to ensure proper seating and handling.
  • Hub design: Dual flange or single flange affects wheel rigidity and braking alignment; choose based on riding style and brake type.
  • Brand and model alignment: Some hubs are labeled for specific lines (Z50, Coleman CT100U, Mega Moto). Pick according to your bike’s model to reduce fit issues.
  • Ease of installation: Look for hub sets or rims with straightforward installation steps, and consider whether you need a complete hub set (front and rear) or a single component.

How to compare options quickly

  • Best for Z50/Monkey wheels: Choose a dedicated Z50 hub set or rear hub with 12 mm compatibility.
  • Best for multi-brand projects: Pick a 145/70-6 wheel with broad compatibility and a sturdy rim.
  • Best for rigidity: Dual flange wheels offer improved stability on rough terrain.
  • Best for CT100U family builds: A 6″ rear rim designed for Coleman CT100U maximizes fit and performance.

FAQ

  1. What is the typical axle size for these mini bikes?

    Most common is 12 mm; verify your bike’s axle diameter before purchase.

  2. Can I use a wheel from a different brand on my bike?

    Some wheels list broad compatibility, but verify fit for your exact model to avoid clearance or mounting issues.

  3. Do these rims require special installation tools?

    Basic hand tools are usually sufficient, but some hubs may need specific spacers or bolts depending on the model.

  4. Are 6″ rims compatible with all mini bike tires?

    Not universally; confirm tire width and rim width compatibility for your model.

  5. Is a front and rear hub set necessary?

    Only if your build requires both; many projects operate with a front hub and a separate rear hub.

  6. Which option is best for a beginner builder?

    A complete hub set or rim kit with clear installation instructions helps minimize mistakes.