RZEOZU Mini Bike Rear Wheel Assembly 145/70-6 Tire on 6" Alloy Rim — 12mm Axle Fit, Diamond Tread

RZEOZU's 145/70-6 mini bike tire and 6" alloy rim assembly is a direct replacement kit engineered to restore traction, fit a 12 mm axle, and rebuild rear wheel function on many 80–105cc minibikes.

This complete wheel-and-tire kit combines a sturdy 6" alloy rim with a 145/70-6 rubber tire that features a diamond-pattern tread. It’s designed specifically to match common small-frame minibike applications — including Coleman CT100U, Motovox MBX models, Baja Doodlebug DB30 and similar 79.5–105cc machines — and to offer a reliable aftermarket replacement where original parts are worn, damaged or unavailable. The assembly focuses on fit, durability and off-road grip without adding unnecessary complexity.

Will this wheel kit fit my minibike with a 12 mm axle?

Yes — the RZEOZU kit is built for minibikes and go-karts using a 12 mm rear axle. Before purchasing, confirm your bike’s axle diameter and clearance for a 6" rim and 145 mm section width to ensure proper installation.

• Rim diameter: 6 inches — standard for many minibike models
• Tire size: 145/70-6 — overall diameter ~13.58 inches
• A compatible axle: 12 mm (measure to confirm)
• Clearance check: allow room for the 145 mm width and tire sidewall

How does the diamond tread perform off-road?

The aggressive diamond-shaped tread provides multi-directional bite for loose dirt, sand and light mud, improving stability and preventing slippage during acceleration and turns. Its pattern sheds small debris well and balances grip with predictable steering feel.

• Designed for mixed-terrain use: dirt, gravel, sand
• Tread sheds mud and small stones to maintain traction
• Pattern enhances lateral stability for cornering control
• Optimized for minibike speeds and loads

Is the construction durable enough for daily riding and impact?

The rim uses a solid alloy build to resist bending and corrosion, while the tire is molded from a robust rubber compound formulated for puncture and cut resistance. Together they form a replacement assembly intended to handle typical off-road stresses and frequent use.

• Alloy rim for strength and longevity
• Premium rubber compound resists cuts and abrasions
• Engineered to withstand common trail impacts
• Suitable for routine riding and recreational use

What are the exact dimensions and specification details?

The kit ships with clear dimensional data to help you verify compatibility. Measure your current wheel and clearances before ordering to ensure a correct match.

• Overall tire diameter: approximately 13.58 inches
• Rim diameter: 6 inches
• Tire section width: 145 mm, aspect ratio 70
• Fitment scope: suitable for many 79.5–105cc minibikes with 12 mm axle

Who is this for: The RZEOZU 145/70-6 tire and 6" rim assembly is aimed at minibike owners, small-kart hobbyists and repair shops that need a reliable rear wheel replacement for 80–105cc machines. If you own a Coleman CT100U, Motovox MBX series, Baja Doodlebug DB30, Monster Moto MMB80/MMB105, Massimo MB100 or a similar minibike that uses a 12 mm axle, this kit is a practical choice to restore rideability and off-road traction without sourcing original-equipment parts.