Rims are a critical link between your dirt bike and the trail. The right rim size and construction withstand shocks, maintain wheel alignment, and support rotors, sprockets, and bearings under rough terrain. This guide highlights five dependable rim options that suit common dirt bike builds, focusing on diameter, axle compatibility, material quality, and installation considerations. Each product below is linked to Amazon for quick viewing and purchase. Use the quick-reference summary table to compare sizes and features at a glance.
Before you buy, verify your machine’s axle size (such as 12mm or 15mm), bearings, and whether you need a front or rear rim assembly. The listed options include 12mm and 15mm bearing sizes and, in some kits, rotor and sprocket hardware to simplify installation and maintenance.
| Product | Brand | Wheel Size | Highlights |
|---|---|---|---|
| 14-Inch Rear Wheel Rim Assembly For Dirt Pit Bikes | RedCap | 14″ Rear | Includes brake rotor and sprocket; 15mm bearing; not compatible with 12mm axles |
| XIKOBY 14-Inch Rear Rim Kit | XIKOBY | 14″ Rear | 15mm bearing; compatible with many 90/100-14 tires; rotor bolt spacing 70mm |
| Rim Tube Tire Set For 12-Inch Dirt Bikes | YLQYYH | 12″ Rear | Includes rotor and sprocket; 12–15mm axle options; 428 chain sprocket |
| Julymoda 80/100-12 Rear Wheel Rim | Julymoda | 12″ Rear | 12mm bearing set; 70mm disc mounting; 65mm sprocket mounting |
| 17-Inch Front Rim Wheel Assembly For Dirt Pit Bikes | RedCap | 17″ Front | Includes brake rotor; 15mm axles; compatible with multiple 125cc–160cc models |
14-Inch Rear Wheel Rim Assembly For Dirt Pit Bikes
The 14-inch rear wheel rim assembly fits tires sized 90/100-14 and is designed for dirt bikes in the 125cc to 160cc range, including models like KLX65 and Apollo variants. It comes as a complete rear wheel assembly with a brake rotor and sprocket included, plus a 15mm bearing. A key compatibility note is that this kit will not work with 12mm axles, so users must verify their machine’s axle size before ordering. The rim and tire assembly emphasizes durability for rough trails, with robust construction to handle off-road shocks.
Designed for broad compatibility, this RedCap unit is commonly used on dirt bikes such as Thumpstar, Atomik, Pitpro, and DHZ Kayo models. Installation benefits from a straightforward bolt-on approach, provided the axle hole and bearing size match your machine. The included rotor and sprocket reduce the need for separate parts, which helps streamline maintenance. Prospective buyers should confirm axle compatibility and ensure correct mounting coordinates for rotor and sprocket alignment to maximize performance on challenging terrain.
XIKOBY 14-Inch Rear Rim Kit With 12mm Bearings
The XIKOBY rear rim kit is a 14-inch piece designed to fit a wide range of off-road motorcycles using 90/100-14 and 3.00-14 tires. It supports many popular models, including Apollo RFZ Open 125cc and KLX125/ KX85 families, along with TTR125, YZ85, RM80, and SSR SR150. The kit uses 15mm bearings and features a typical 32-spoke pattern with a rotor bolt hole spacing of 70mm. The rim is crafted from durable metal, and the kit includes necessary strips to protect the inner tube and extend rim life. Note the axle requirement of 15mm; it is not compatible with 12mm axles.
Compatibility details extend to a broad mix of dirt-bikes, including older and modern variants across the KLX, KX, YZ, and SSR lines. Spoke count and rotor placement are designed to align with common rotor and sprocket patterns, simplifying upgrades or replacements. For best results, measure your axle diameter, rotor mounting pattern, and rim width before purchase to ensure a precise match with your bike’s rear wheel assembly and overall drivetrain alignment.
Rim Tube Tire 80/100-12 12-Inch Rear Wheel Assembly
This complete rear wheel assembly centers on a 12-inch rim with 80/100-12 tires, commonly used on smaller dirt bikes. The kit includes 12–15mm bearings, accommodating a range of axle sizes. It also includes a brake rotor and sprocket, ensuring that the wheel integrates smoothly into many 110cc to 160cc dirt bikes. Sprocket considerations include a 428 chain size, and rotor mounting measures around 187mm in diameter. The design emphasizes compatibility with multiple makes, so you’ll want to verify axle and rotor compatibility before installation.
The rim is designed to be robust and adaptable, with reinforced safety features and a heavy-duty fit for low-traction conditions. Installation guidance emphasizes verifying the axle hole diameter (12–15mm) and ensuring the rotor and sprocket align with the bike’s braking and drive configurations. The wheel is suited for riders who need a straightforward front-to-back replacement that maintains consistent performance on varied dirt surfaces.
Julymoda 80/100-12 Rear Wheel Rim With 12mm Bearing Set
Julymoda’s 80/100-12 rear wheel rim is a complete wheel assembly designed for dirt bikes, with a 12mm bearing set to fit common 12mm axle configurations. A key spec is the mounting distances: disc mounting distance at 70mm and sprocket mounting distance at 65mm, which helps ensure proper rotor clearance and chain alignment on compatible bikes. The rim is engineered for dirt-bike use, focusing on durability and reliable performance across rocky trails and mud.
Designed to integrate with various dirt bikes, the Julymoda wheel is compatible with a broad set of models that run 12mm axles. When upgrading, confirm rotor type and mounting pattern, as well as the space between the sprocket and brake rotor. The presence of a complete bearing set reduces the need for additional parts, while the disc brake compatibility supports reliable stopping power in challenging off-road environments. Secure installation and regular inspection of bearings are advised for optimal longevity.
17-Inch Front Rim Wheel Assembly For Dirt Pit Bikes
The 17-inch front wheel assembly is designed for larger dirt-bike configurations and fits models such as Apollo RFZ, SSR, XR, CRF, DB, KLX125, KX85, TTR125, YZ85, YZ80, RM80, and other 125cc–160cc lineups. The kit includes a front rotor and is designed for 15mm axles, with a 70/100-17 tire compatibility for a wide front-end range. Compatibility with various makes is a central feature, helping riders upgrade wheels without sacrificing front-end handling and steering precision on rough trails.
Front-wheel upgrades can influence steering feel and front-end stability. When selecting this rim, confirm the tire size, rotor mounting arrangement, and the bike’s fork clearance. Front wheels experience different loading patterns than rear wheels, so ensure the rotor and axle configurations align with the bike’s braking system and steering geometry. Proper torque during installation and regular inspection of the hub and bearings will maintain consistent performance on uneven terrain.
Buying Guide
Fitment And Axle Size
Rims come in 12mm and 15mm bearing configurations. Verify your bike’s rear axle diameter and bearing ID before purchasing. A mismatch can lead to improper wheel alignment, compromised braking performance, and unsafe handling on rugged trails. Front rims often use larger axles than some rear setups, so double-check both ends of the bike’s wheelset.
Diameter, Width, And Tire Compatibility
Common sizes include 12″, 14″, and 17″ rims. Match the wheel size to the tire you plan to use and the bike’s model year. Ensure the tire’s width and the rim width are compatible, and confirm that the rotor, sprocket, and brake clearance align with your bike’s components. A well-matched wheel/tire combo improves traction, stability, and overall ride comfort on varied terrain.
Rotor And Sprocket Compatibility
Many rim kits include a rotor and a sprocket, which simplifies installation and reduces the number of parts to source. Check rotor mounting distance (for example, 70mm is common) and sprocket mounting patterns to prevent clearance issues. If you are upgrading, ensure your brake system and chain line remain aligned after installation.
Material And Durability
Rims are typically made from durable metal alloys designed to withstand impacts and corrosion from mud, water, and grit. Look for reinforced lips and spoke protection features to extend rim life and prevent spoke breakage under heavy loads. A strong inner tube or tube-protection features, such as rim strips, can reduce puncture risk in rough trails.
Installation And Maintenance
Choose kits that offer straightforward bolt-on installation and included hardware when possible. After installation, torque bolts to manufacturer specs and check rotor runout and hub play. Regular inspection of bearings, seals, and spoke tension helps maintain wheel trueness and prevents safety issues during long rides.
Budget Versus Longevity
Rim assemblies with rotor and sprocket hardware may cost more upfront but save time and labor during maintenance. If you ride aggressively or on rocky trails, investing in a higher-quality rim can reduce downtime and improve reliability. Compare build quality, material, and warranty coverage when evaluating options in the same size class.
Quick recommendations: for rear upgrades, ensure the axle size matches your bike (12mm vs 15mm) and confirm rotor/sprocket compatibility. For front upgrades, verify steering clearance and fork compatibility. Always measure and compare the specific mounting distances and bore sizes before finalizing a purchase to ensure a proper fit with your dirt bike’s drivetrain and braking system.