Choosing the right tires for a 125cc pit bike matters for safety, grip, and performance on both street-like surfaces and light off-road. This guide reviews five tire-and-rim options commonly used on 125cc and 140cc pit bikes, focusing on sizes that fit popular 14-inch and 17-inch rims. Each entry includes a quick summary and a detailed look at features to help riders assess compatibility with their machine, riding conditions, and maintenance routines. The options below reflect a mix of rear-wheel tires, front tires, and complete rim-tire assemblies you can source on Amazon.
| Product | Brand | Tire Size | Rim Size | Notes |
|---|---|---|---|---|
| Mlonausz 14″ Rear Tire Assembly | Mlonausz | 90/100-14 | 14 inch | Rear tire assembly with reinforced construction |
| KAMIER Front And Rear Tire Set | KAMIER | Front 60/100-14; Rear 80/100-12 | 12 inch rear; 14 inch front | Combination set for multiple models |
| RedCap 14 Inch Rear Wheel Assembly | RedCap | 90/100-14 | 14 inch | Includes brake rotor and sprocket |
| YC Yier Wheel Combo Set | YC Yier | Front 70/100-17; Rear 90/100-14 | 17 inch front; 14 inch rear | Front and rear wheels with bearings |
| XIKOBY Rear Rim And Bearing Kit | XIKOBY | 90/100-14 | 14 inch | Rear rim kit with 12mm/15mm bearings |
Note: The products listed are oriented toward pit bikes that commonly run 14-inch and 17-inch wheels. If your bike uses a different rim size or a street-legal tread pattern, you may need additional adapters, tubes, or a separate tire with a street-legal pattern. Always verify axle diameter and bearing compatibility before purchase to ensure proper fit and safe operation.
Mlonausz 14″ Rear Tire Assembly
Designed for 14-inch rims, this rear tire assembly uses high-quality rubber to improve wear resistance and high-temperature stability. The material choice helps resist aging and deformation, extending service life under regular riding. A safety-oriented construction includes explosion-proof technology and reinforced body shoulders. Thickened lips reduce the likelihood of tire blowouts, enhancing rider safety on mixed surfaces common to pit-biking. The tread pattern features thickened and deep blocks that deliver strong grip, complemented by good drainage and lateral support to handle varied road conditions. The combination is well-suited for riders looking to refresh a 14″ rear wheel setup on 125cc or 140cc pit bikes.
This tire assembly is explicitly compatible with 90/100-14 tires on 14-inch rims, a common configuration on many pit bikes. It balances grip and durability for street-like riding on paved or damp surfaces while remaining capable for light off-road use. Installation is straightforward when replacing a worn rear tire, and the tire’s design supports stable handling during braking and cornering. Riders should routinely inspect the bead area and sidewalls for wear, and monitor wear indicators to maximize tire life and safety on daily commutes or recreational rides.
In summary, Mlonausz’s 14″ rear tire assembly provides a durable, safety-focused option for riders who want a reliable 14-inch rear tire that can handle mixed conditions encountered on real-world street-to-dirt pit bike routes. It pairs with common 14-inch rims and is suitable for many 125cc and 140cc pit bikes that use this size.
KAMIER Front And Rear Tire Set
This two-tire set covers both front and rear needs for a wide range of small-displacement dirt bikes, including 125cc and 140cc models. The front tire is sized at 60/100-14 with a 14-inch rim, while the rear tire is 80/100-12 for a 12-inch rear rim. The packaging emphasizes broad compatibility across popular pit-bike brands and frames, including Tao Tao, Apollo RFZ, SSR, TrailMaster, Vitacci, and more. The front and rear tires’ sizes align with bikes that use 12″ rear and 14″ front rims, which are common on many entry-level pit bikes. This makes the set convenient for owners who want a complete replacement without hunting for mismatched parts.
The KAMIER set highlights versatility and model compatibility, listing numerous dirt-bike families in its notes. The combination approach ensures you get a matched pair that supports balanced handling, cornering, and braking dynamics across a spectrum of riding surfaces. While these tires are designed for dirt and trail use, their tread profiles tend to offer predictable behavior on mixed terrain, including damp pavement. Regular inspection of tread depth, sidewall integrity, and bead seating will help maximize life and performance in daily rides and weekend sessions alike.
In short, the KAMIER Front And Rear Tire Set is a practical, model-friendly option for riders seeking a complete tire solution for 12″ rear and 14″ front rims. It emphasizes broad compatibility and straightforward installation, making it a convenient pick for updating a 125cc pit bike’s streetable performance.
RedCap 14 Inch Rear Wheel Assembly
This 14-inch rear wheel rim tire assembly is designed for dirt pit bikes in the 125cc to 160cc range, including KLX65, Apollo, Kayo TT, SSR and similar models. The package includes a brake rotor and sprocket, which simplifies installation and helps riders preserve braking performance and drive train alignment when swapping wheels. It’s essential to verify axle compatibility; the note cautions about axle hole size and bearing compatibility, as some bikes use 12mm while others require 15mm bearings. The assembly targets newer Apollo-equipped dirt bikes and similar platforms, providing a robust option for replacing worn rear wheels with a complete unit that’s ready for street-oriented use as needed.
Prospective buyers should measure axle diameter and confirm rotor compatibility before purchasing. The included brake components help ensure reliable stopping power, particularly important if you’re transitioning from an off-road setup to mixed-use riding on streets or public roads. This RedCap option consolidates wheel, rotor, and sprocket into one package, reducing the guesswork when upgrading a rear wheel on compatible 14″ rim bikes.
Overall, RedCap’s 14″ rear wheel assembly offers a turnkey solution for riders seeking a complete rear-wheel swap with braking components already in place. It’s especially suitable for riders who want a straightforward upgrade path for 14-inch rim bikes in the pit-bike ecosystem.
YC Yier Wheel Combo Set
The YC Yier wheel combo set provides a 17-inch front wheel and a 14-inch rear wheel with tires sized at 70/100-17 front and 90/100-14 rear, plus a 15mm wheel bearing. This pairing is designed to accommodate a broad range of pit bikes, including brands such as SSR, Apollo, Kayo, Coolster, Thumpstar, and Tao Tao. The 17-inch front wheel is a common upgrade path for riders seeking more stable steering and an expanded tire selection on the front end, while the 14-inch rear wheel aligns with many standard pit-bike configurations. The 15mm bearing specification supports compatible axle fitments across several models, reducing the need for custom adapters.
Riders considering this kit should verify that their bike supports a 17-inch front wheel, as this can influence brake clearance, fender fit, and steering geometry. The combination is beneficial for riders who want a single-source upgrade for both front and rear wheels, ensuring cohesive handling with a matched set. It suits riders who value ease of installation and the ability to source a complete wheel upgrade from one supplier, simplifying maintenance over time.
In sum, YC Yier’s wheel combo set is a versatile choice for those upgrading both front and rear wheels on 125cc to 160cc pit bikes. The 70/100-17 front paired with a 90/100-14 rear offers a balanced setup for mixed-terrain riding and street-style applications while retaining compatibility with a broad brand range.
XIKOBY Rear Rim And Bearing Kit
This kit centers on a 1.85×14 rear rim designed to fit dirt bikes using 90/100-14 tires and 14-inch rims. It includes 15mm bearings and rim strips, a practical package for riders upgrading or repairing a rear wheel on 125cc to 140cc bikes. The product note emphasizes broad compatibility with many off-road models, including Apollo RFZ and similar brands, with careful attention to axle hole size for proper mounting. The rim strips protect the inner tube from spoke contact, reducing puncture risk. Red valve-stem caps add durability and corrosion resistance for longer service life in varied weather conditions.
The carrier claims compatibility with 12mm to 15mm bearing sizes, enabling some flexibility when swapping axles or upgrading to newer systems. This kit is particularly well-suited for riders who want a robust 14-inch rear wheel setup with reliable bearings and accessories to match common dirt-bike configurations. It can be paired with a 90/100-14 tire to refresh an aging rear wheel while maintaining compatibility with a wide range of pit bikes.
For riders who prefer a modular approach to wheel upgrades, the XIKOBY rear rim and bearing kit offers a practical, durable option that emphasizes compatibility, protection against punctures, and straightforward installation on compatible 14-inch rear rims.
RedCap 12 Inch Rear Rim Wheel Disk Brake
This option targets 12-inch rear rims with a disk-brake setup and 80/100-12 tires, suitable for certain Apollo SSR and Tao Tao pit bikes. The package includes a brake rotor and a 428 chain with a 41T sprocket, along with a 15mm axle. The listing emphasizes compatibility with a range of 110cc and 125cc dirt bikes and highlights that wheels should be matched to the correct axle and bearing sizes. It’s designed to be a practical upgrade or replacement for smaller-displacement pit bikes seeking a disk-brake-equipped rear wheel to support more secure braking and dependable performance.
When selecting this wheel, verify the specific axle diameter and rotor spacing for your model. This setup is particularly attractive for riders who want a turnkey 12-inch rear wheel with a disk brake system included, enabling smoother braking and consistent performance on varied riding conditions, including some street-style usage on mixed-terrain courses.
XIKOBY Front Wheel And Rear Wheel Assembly
The XIKOBY front wheel and rear wheel assembly is designed for 70/100-17 front tires and 90/100-14 rear tires, with bearing assemblies suitable for 15mm axles. This setup supports a broad range of 125cc to 160cc dirt bikes, including popular models from Apollo RFZ, KX, and SSR lines. The front wheel is 17 inches, broadening tire choices for front-end grip and steering stability on mixed surfaces. The rear 14-inch wheel matches the common rear sizing for many pit bikes, ensuring compatibility with a variety of bikes while enhancing overall handling in both off-road and street-like scenarios.
Riders should confirm compatibility with their model’s brake type, fender clearance, and frame geometry when combining front and rear wheels from the same brand. The kit’s design prioritizes compatibility and straightforward installation, helping riders achieve a cohesive wheel setup across the front and rear ends for quicker maintenance and predictable handling in everyday riding and light competition.
Buying Guide
Match Tire Size To Your Bike
Start by confirming your pit bike’s rim diameter and tire size. Common sizes include 14″ rear with 90/100-14 tires and 17″ front with 70/100-17 tires, but models vary by brand. Using tires that match your rim size ensures proper bead seating, braking clearance, and suspension travel. If you’re upgrading from a smaller wheel, ensure your forks, fender, and brake system can accommodate the new diameter without rubbing or binding.
Front Or Rear Or Both
Decide whether you need a front tire, rear tire, or a complete wheel set. Front tires influence steering feel and stability on straightaways and cornering, while rear tires impact traction and drive feel. For riders who encounter mixed terrain and wish to simplify maintenance, consider a front/rear pair or a combined wheel kit to ensure consistent handling and simpler maintenance schedules.
Axle, Bearing, And Rotor Compatibility
Axle diameter (commonly 12mm, 15mm, or other sizes) and bearing IDs determine compatibility with wheel assemblies. If your bike uses a specific axle size, verify that the selected wheel kit provides matching bearings. For models with disk brakes, check rotor compatibility and mounting spacing. A kit that includes a rotor and sprocket can simplify installation, but confirm the rotor size and bolt pattern to prevent alignment issues.
Tread Pattern And Riding Surface
Tread patterns influence grip on pavement, gravel, mud, and wet surfaces. Street-friendly tread patterns may be smoother and quieter on asphalt, while off-road tires provide more aggressive traction in dirt and mud. If you intend to ride mostly on concrete or tained pavement, look for tires described as street or touring patterns. If your riding includes dirt trails, choose tires with knobby blocks and adequate side grip to handle loose surfaces.
Durability, Availability, And Maintenance
Durability matters for longer intervals between replacements. Look for tires with reinforced sidewalls, heat resistance, and robust construction. Availability is another factor; some sizes and brands are easier to source, which can reduce downtime. Regular maintenance—checking air pressure, bead seating, and tread depth—extends tire life and maintains predictable handling. Consider buying a complete wheel set when possible to ensure consistent performance across front and rear ends.
Budget And Compatibility Trade-Offs
Prices vary across brands, sizes, and whether a wheel kit includes rotors and sprockets. A balance between cost, durability, and compatibility with your specific pit bike is essential. If you ride frequently on mixed terrain or need a quick swap for street-style use, investing in a complete wheel set with matching bearings and hardware can save time and hassle in the long run.