The best ATV rear axle kit is the one that matches your vehicle’s axle length, hub bolt pattern, sprocket, brake, and frame dimensions. The Yier 28-inch kit is best for many 110cc–150cc builds needing a complete rear assembly, while the 32-inch CWTD kit suits compatible GY6-style builds using four-stud hubs. The other options include a wheel-and-tire package, a kit with detailed shaft specifications, and a longer 44-inch live axle for custom kart projects. Measure your existing setup before choosing.
| Kit | Best suited for | Key detail to check |
|---|---|---|
| Yier 28-inch assembly | Selected 110cc–150cc vehicles | Three-stud hubs and frame fit |
| 32-inch shaft kit | Go-kart or ATV replacements | 23- and 28-spline details |
| 28-inch kit with wheels | DIY rebuilds needing wheels | Wheel and axle dimensions |
| CWTD 32-inch assembly | Selected GY6-style builds | Four-stud, 110mm pattern |
| 44-inch live axle kit | Longer custom kart builds | 530 chain and axle layout |
Yier 28-Inch Rear Axle Assembly
This complete assembly is listed for selected 110cc, 125cc, and 150cc ATVs, quads, go-karts, and buggies. It includes a 710mm (28-inch) axle, rear swingarm frame bracket, brake disc, three-stud wheel hubs, sprocket cover, brake disc cover, and hardware. The manufacturer describes the axle as heavy-duty steel.
Best for: A small-vehicle replacement or rebuild where the original setup uses a 28-inch axle and compatible three-stud hubs. It was selected for its included bracket and brake components, which can reduce the need to source those parts separately.
Check before buying: Confirm the axle length, hub pattern, and bracket dimensions against your vehicle. The listed engine sizes do not establish universal fitment.
32-Inch Axle Kit With Shaft And Brake Parts
This 815mm kit is described as a replacement for go-kart and ATV setups. Listed specifications include a 30mm-thick axle section, a 428 chain sprocket with 37 teeth, a 190mm brake disc, a four-hole diagonal hub measurement of 11cm, and 23- and 28-tooth spline details. The feature list also identifies a brake master cylinder.
Best for: Buyers who can compare detailed shaft, sprocket, brake, and hub measurements with an existing assembly. Those specifications make it easier to screen for dimensional fit than a listing with only a general vehicle description.
Check before buying: The listing advises measuring before purchase and notes that the axle may have a normal slight curve. Confirm the supplied parts and measurements suit your build.
28-Inch Kit With Wheels And Knobby Tires
This kit combines a 28-inch rear axle with 11×7.10-5-inch go-kart wheels, knobby tires, a 428 chain sprocket, and a foot brake. It is listed for selected 110cc, 125cc, and 150cc ATVs, go-karts, quads, and buggies. The product description says it works with six- to seven-inch, three-bolt wheels and is made from iron and rubber with a painted surface.
Best for: DIY rebuilds that need an axle and wheel-and-tire package rather than an axle alone. It was selected because the included wheels and tires can suit buyers replacing more than the shaft assembly.
Check before buying: Verify the listed wheel pattern and tire dimensions. The included wheel-and-tire setup may not match a build designed around different wheel sizes.
CWTD 32-Inch Four-Stud Axle Kit
This assembly measures approximately 810mm overall, with about 750mm of wheel spacing. It includes four-stud hubs with a 110mm diagonal bolt distance and is described for selected go-kart, ATV, quad, buggy, and GY6 125cc or 150cc-style builds. The listing says it is designed for compatible seven- to ten-inch wheels; wheels are not included.
Best for: A selected GY6-style project needing four-stud hubs and a 32-inch axle. The stated axle, wheel-spacing, and bolt-pattern measurements support a direct comparison with an existing setup.
Check before buying: Confirm frame width, sprocket fitment, axle length, and hub pattern. The listing describes fit as dependent on matching those measurements.
44-Inch Live Axle Kit For Custom Builds
This 1120mm live axle kit is listed for ATV, quad, and go-kart replacement or DIY reconstruction projects. Its specifications include a 33mm shaft diameter, a 530 chain with 74 links, a 37-tooth sprocket, a 220mm brake disc, and a four-hole hub with an 11cm diagonal measurement. The listing also provides sprocket and brake-disc positions.
Best for: Custom builds that need a longer axle and use the listed 530-chain and hub specifications. It was selected as the longest option in this group, giving buyers a distinct choice for a different layout.
Check before buying: Measure the axle, hub, sprocket, and brake positions carefully. The product is described as a modified part, and the listing notes that the axle can have a slight curve.
Buying Guide: How To Choose An ATV Rear Axle Kit
Which axle length and wheel spacing do you need?
Measure the current axle from end to end and record the distance between wheel mounting points. Do not rely on a general description such as “for ATV” or an engine-size range alone. A 28-inch axle and a 32-inch axle are not interchangeable unless the frame and wheel layout accommodate the difference.
Do the hubs match your wheels?
Check the number of studs or holes, bolt pattern, and hub dimensions. Three-stud and four-stud hubs are different configurations. Compare the bolt pattern measurement with your wheel, and note whether wheels are included. For example, the CWTD kit states that wheels are not included.
Will the chain and brake components fit?
Match the chain model, sprocket tooth count, sprocket position, brake disc diameter, and brake mounting arrangement to the existing drivetrain. A kit’s listed chain or brake parts do not guarantee compatibility with a particular vehicle. Compare measurements and component positions before ordering.
What else should you measure?
- Frame or swingarm mounting dimensions and available width.
- Axle diameter, spline count, and hub mounting method.
- Wheel size and clearance around the frame.
- Brake disc position and any included brake hardware.
Frequently Asked Questions
Are ATV rear axle kits universal?
No. Fit depends on dimensions and components such as axle length, hub pattern, frame width, sprocket, and brake layout. Verify these against your vehicle.
Does a 28-inch axle fit every 110cc ATV?
No. Engine size alone does not confirm axle compatibility. Check the original axle length, hubs, and mounting points.
Are wheels included with every kit?
No. Included parts vary by product. The CWTD listing specifically says wheels are not included, while the 28-inch wheel-and-tire kit lists wheels and tires among its components.
What does a 530 chain specification mean for fit?
It identifies a chain type listed for that kit, but it does not confirm fit with your sprocket or vehicle. Check the existing drivetrain specifications and sprocket alignment.