XIKOBY 12" Rear Wheel Assembly 80/100-12 Tire & Tube Kit — 1.85x12 Rim, Brake Rotor & 428 41T Sprocket

This complete rear wheel kit gives you a fast swap-out solution when your existing wheel, tire, tube or drivetrain components are worn. Instead of changing parts one-by-one, the assembled rim, tire and tube arrive ready to mount, and the included brake disc, sprocket, chain pieces and installation tools simplify fitment for compatible mini and pit bikes.

Will this wheel assembly fit my mini or pit bike?

The kit is built around an 80/100-12 tire on a 1.85x12 rim and is designed to work directly with models that use a 12" rear disc brake and 80/100-12 sizing. It lists direct compatibility with SSR SR125, TaoTao DB14, Coolster QG-214 and several similar 110–125cc models.

• Rim size: 1.85x12; tire size: 80/100-12
• Intended for bikes with a 12" rear disc brake
• Common compatible models: SSR SR125, TaoTao DB14, Coolster QG-214
• Bikes with drum brakes may require a disc brake conversion for direct fit

How does the tire and tread perform off-road?

The tire uses a knobby tread pattern molded from durable rubber to increase traction across dirt, gravel and muddy tracks. The blocky tread bites into loose surfaces and channels debris for more consistent grip when cornering or accelerating off-road.

• Knobby tread for mud and loose terrain control
• Durable rubber compound for extended service life
• Designed to resist chunking on rocky trails
• Sized for typical mini/pit bike handling characteristics

What drivetrain and brake hardware are included?

This kit arrives with a machined brake rotor, a heat-treated 428 41T steel sprocket, a full 428 chain (108 links), master links and a chain breaker for on-bike installation. The sprocket is corrosion-resistant and heat-treated to reduce premature wear, while the aluminum alloy brake disc provides the braking surface needed for disc-equipped bikes.

• 428 41T heat-treated steel sprocket for longevity
• Brake disc made from high-strength aluminum alloy
• Complete 428 chain (108 links), 5 master links and chain breaker
• Fasteners and circlip included for direct replacement

How easy is it to install this assembled wheel?

Because the tire and inner tube are already mounted on the rim and the brake rotor and sprocket are supplied, installation usually means removing the old rear wheel and bolting this assembly into place. That method cuts downtime versus mounting tire, tube and hardware separately, particularly for riders doing quick field repairs or complete wheel swaps.

• Comes pre-assembled: rim, tire, inner tube
• Includes bearings, stem caps, patches and basic tools
• Swap the whole wheel to minimize shop time
• Some models with drum brakes need rotor/sprocket upgrades first

Who is this for: riders, mechanics or weekend tuners who want a plug-and-play rear wheel replacement for small-displacement off-road bikes. It’s ideal for owners of compatible SSR, TaoTao, Coolster and similar 110–125cc machines who prefer a faster, cleaner replacement over changing tire, tube, sprocket and rotor separately.