Best Dirt Bike Build Kit for Pit Bike Projects

#1 · Best Overall

1. Zarko 14/12 Build Kit

• Wheel Size: 19.3 in
• Rim Size: 14 in
• Size: 14 inch

Best for: Shock-included 14/12-inch builds.

Why it ranks #1: Pairs 14-inch front and 12-inch rear wheels with forks, swingarm, 285mm shock, and hydraulic brakes for listed 70cc to 125cc builds.

A 285mm rear shock arrives alongside this Zarko kit’s 14-inch front and 12-inch rear wheels, distinguishing it from packages that list a swingarm without a shock. Hydraulic brakes, forks, and a swingarm round out the main rolling parts for 70cc–125cc pit-bike and mini-dirt-bike projects.

The 14-inch front wheel uses a 60/100-14 knobby tire, and the 12-inch rear uses an 80/100-12 tire; both are paired with hydraulic disc brakes. At the back, the 285mm shock comes with the swingarm, so the kit supplies both listed rear suspension components together. The front end includes 735mm forks and a triple clamp, with 7/8-inch handlebar fit specified. These details help organize a build around the stated 14/12-inch layout and named 70cc–125cc applications.

Skip it if you are assembling a 110cc–160cc Apollo or SSR chassis with 17/14-inch wheels; LenvraSQ B0G2W27WKG lists that fit range and wheel pairing.

Pick this for a 70cc–125cc pit-bike build that needs a 14/12-inch wheel set plus a listed rear shock. Its specified wheel sizes and handlebar fit are useful planning points, while projects outside the stated engine range are a boundary.

Listed on Amazon as: Complete Pit Bike Build Kit 14" 60/100-14 Front 12" 80/100-12 Rear Wheels Forks Swingarm Hydraulic Brakes for 70cc 110cc 125cc Dirt Bike SSR Apollo DB14 XR70 CRF50 Style

#2 · Complete Chassis

2. LenvraSQ 14/12 Chassis Kit

• Size: 54.33 inch cable length

Best for: Restoration and rolling-chassis kits.

Why it ranks #2: Includes 14/12-inch wheels, forks, swingarm with shock, hydraulic brakes, sprocket, and axles, covering many core rolling-chassis components.

A matched 14-inch front and 12-inch rear wheel set with knobby tires is the core of this LenvraSQ rolling-chassis kit. Forks, a rear swingarm with shock, hydraulic brakes, sprocket, and axles are also listed, giving builders a broad collection of parts for custom off-road builds or restorations.

The 60/100-14 front tire and 80/100-12 rear tire establish the kit’s wheel pairing, while the included forks and swingarm with shock supply listed suspension parts for both ends. Hydraulic brakes, a sprocket, and axles add braking and assembly components to the rolling package, which can simplify sourcing for a restoration or custom build. The title gives a 50cc–140cc application range. The supplied description does not give further frame or steering measurements, so those details are not available here for fit comparison.

Skip it if you require published frame or steering dimensions before purchase; the supplied listing does not provide those measurements.

This suits a builder restoring or assembling a 50cc–140cc off-road bike who needs a 14/12-inch rolling foundation with brakes and drive parts. Check that wheel and steering fit against your project, since detailed dimensions are not supplied.

Listed on Amazon as: Complete Pit Bike Rolling Chassis Kit | 14" Front & 12" Rear Wheel Set | Forks, Swingarm & Hydraulic Brakes | For 50cc-140cc Off Road Builds

#3 · Broad Fitment

3. YC Yier 14/12 Chassis Kit

• Wheel Size: 14 in
• Rim Size: 12 in
• Size: No

Best for: 14/12-inch rolling chassis projects.

Why it ranks #3: Offers 14/12-inch wheels, forks, swingarm with shock, hydraulic brakes, axles, sprocket, and chain; its listing names several pit bike families.

A matched 14-inch front and 12-inch rear wheel-and-tire package anchors this YC Yier kit, with knobby tires sized 60/100-14 and 80/100-12. It also brings together forks, a swingarm with shock, hydraulic brakes, and drive components for builders assembling or upgrading a rolling pit-bike chassis.

The front assembly combines a 735mm fork with a 14-inch wheel and hydraulic disc brake, while the rear assembly pairs a 12-inch wheel with a swingarm and shock. Those matched ends give a builder major rolling-chassis parts in one package rather than requiring separate wheel, suspension, and brake sourcing. Axles, sprocket, and chain are also listed, supporting assembly of the rolling and drive components. Compatibility is named for SSR, Apollo, Taotao, DB14, XR70, and CRF50-style bikes in 70cc, 110cc, and 125cc configurations.

Skip it if you need a listed 17/14-inch wheel combination; this kit uses 14-inch front and 12-inch rear wheels.

Consider it for a 70cc, 110cc, or 125cc project among the listed SSR, Apollo, Taotao, DB14, XR70, or CRF50-style applications. Its 14/12-inch wheel pairing is the key boundary for buyers planning a different size.

Listed on Amazon as: Complete Dirt Bike Build Kit 14" 12" Wheels 60/100-14 Front 80/100-12 Tire Rim Rear Swingarm Front Forks Suspension Hydraulic Brakes for SSR Apollo Taotao DB14 XR70 CRF50 70cc 110cc 125cc Pit Bike

#4 · Larger Wheels

4. LenvraSQ 17/14 Chassis Kit

• Wheel Size: 17 in
• Rim Size: 17 in
• Size: 17 in

Best for: 17/14-inch chassis builders.

Why it ranks #4: Its 17-inch front and 14-inch rear wheel set, 735mm forks, swingarm, and hydraulic brakes suit builds seeking the larger listed wheel format.

A 17-inch front and 14-inch rear wheel set gives this LenvraSQ kit its defining mixed-size setup, while the included forks, swingarm, and hydraulic brakes provide a rolling foundation for a dirt pit bike. It is specified for 110cc–160cc Apollo and SSR models, making it a candidate for those chassis projects.

The 735mm front forks arrive with triple clamps, and the matching rear swingarm supplies both ends of the suspension foundation described in the listing. The 17-inch front and 14-inch rear wheels establish the kit’s wheel-size combination, while hydraulic brakes are included for both wheels. Together, these parts can reduce the need to source several major rolling-chassis components separately. The kit is listed for 110cc–160cc Apollo and SSR models, but the supplied information does not specify individual frame dimensions.

Skip it if you need a listed engine in the package; this kit is described as a chassis foundation ready to accept one.

Choose this kit for an Apollo or SSR 110cc–160cc project needing 17/14-inch wheels, forks, a swingarm, and hydraulic brakes together. Its listed fit range is specific, so it is not presented as a universal chassis package.

Listed on Amazon as: Complete Rolling Chassis Kit for Dirt Pit Bikes | 17" & 14" Wheels, Forks, Swingarm & Hydraulic Brakes | Fits 110cc-160cc Apollo, SSR Models

#5

5. Shilohkart 17/14 Fork Kit

• Rim Size: 19 in
• Size: 70/100-19,2.75-19 & 2.50-19

Best for: Fit-check-focused 110–150cc builds.

Why it ranks #5: Provides 17/14-inch wheels, 700mm forks, triple tree, disc brake calipers, and a 428 sprocket, but the listing does not include a swingarm.

A detailed fork and steering specification distinguishes this Shilohkart kit: its 700mm forks have 45/48mm diameters, and the triple tree fits 22mm handlebars. That combination gives builders concrete dimensions to compare with a Chinese-made 110cc–150cc dirt or pit bike before choosing its wheels, brakes, and front-end parts.

The wheel set pairs a 70/100-17 front tire on a 1.6×17 rim with a 90/100-14 rear tire on a 1.85×14 rim, giving the kit a clearly specified 17/14-inch layout. Both wheels list 15mm bearings and 71mm brake-disc mounting. For installation planning, the listing also gives a 240mm center pole, 160mm bolt spacing, and a 44-22-23.5mm head-tube bearing size to check, alongside the 22mm handlebar fit. Those details make compatibility checks central to the purchase.

Skip it if you cannot match the 44-22-23.5mm head-tube bearing size, stem length, and listed spacing to your bike.

This suits a builder of a Chinese-made 110cc–150cc pit bike who can compare steering dimensions before installation. The listed wheel and fork details are useful, but the stated bearing and stem measurements are important fit boundaries.

Listed on Amazon as: 700mm 45/48mm Front Fork Shock & Triple Tree Riser Clamp Kit with 70/100-17"/ 90/100-14" Wheels Tire Rim, Disc Brake Calipers Set & 428 Sprocket for Pit Dirt Bike, Apollo & Off-Road Motorcycle

#6 · Mini Bike Format

6. Zarko 10-inch Mini Kit

• Wheel Size: 16.5 in
• Rim Size: 10 in
• Size: 10 in

Best for: 10-inch mini-bike rebuilds.

Why it ranks #6: A specialized 10-inch option for CRF50/XR50-style frames and listed 70cc to 110cc engines, with forks, swingarm, wheels, and disc brakes.

Ten-inch front and rear wheels with 2.50-10 and 3.00-10 knobby tires define this Zarko mini-bike kit. The matching small-wheel layout comes with forks, triple clamps, a rear swingarm, and disc brake calipers, giving CRF50/XR50-style frame builders a set of major rolling-chassis components.

The 520mm front forks and included triple clamps form the front end, while a rear swingarm supplies the listed rear chassis component. Both wheel assemblies use 10-inch rims, with 2.50-10 front and 3.00-10 rear tires; disc brake calipers and mounted rotors are specified for both ends. That combination suits a compact mini-bike build without mixing wheel sizes. The listing names 70cc, 90cc, and 110cc engines and CRF50/XR50-style frames, but says the frame, engine, and rear shock are not included.

Skip it if you need a rear shock in the package; Zarko's 14/12-inch TTW037 kit lists a rear shock absorber.

This is for CRF50/XR50-style mini-bike builders targeting 70cc, 90cc, or 110cc setups with 10-inch wheels. Account separately for the frame, engine, and rear shock, which the listing excludes.

Listed on Amazon as: 10" Wheels Mini Dirt Bike 2.50-10 3.00-10 Tires Complete Build Kit Front Rear Wheels Forks Swingarm Disc Brakes for CRF50 XR50 SSR 70cc 90cc 110cc