21HP 6-Speed Four-Stroke Off-Road Motorcycle with Balance Shaft
Every unit undergoes full-process quality control and is individually inspected before shipment. Our in-house production scheduling keeps lead times reliable and allows flexible handling of urgent orders. As a source factory selling direct, we eliminate middleman markups while ensuring fast, responsive after-sales service.
Price
Price varies with configuration, order quantity, and destination port. Contact us for a quote tailored to your order.
MOQ
10
Trade & Cooperation
- Lead Time
- 15 days
- Payment
- T/T, L/C, Credit Card, PayPal, Western Union, Escrow
- Monthly Capacity
- 1000 units/month
- Port
- Major China ports (shipped from the nearest)
- Packing
- Packaging: Individually packed Loading capacity: 20GP: 30 units 40GP: 70 units 40HQ: 105 units
- 21HP 6-speed four-stroke engine with balance shaft design dramatically reduces vibration for a smoother, more comfortable ride on long hauls — cutting rider fatigue and lowering after-sales complaints
- High-compression engine with precision carburetor delivers strong, stable power output, easily handling steep climbs, gravel, sand, and muddy off-road terrain
- 13L high-capacity fuel tank paired with a fuel-efficient four-stroke engine delivers outstanding range, minimizing refueling stops for extended off-road adventures
- Front and rear dual-piston disc brakes with professional off-road tires provide responsive braking and superior grip, ensuring safer handling on challenging terrain and reducing the risk of unexpected downtime
- 13 L fuel tank: fewer refueling stops on long rides, easier range planning.
- Wheelbase 1385 mm, seat height adjustable 910-940 mm: easier to find a suitable riding position for different heights.
- Front suspension 51-54-880 mm, single-adjustable: one knob to adjust, simpler routine setup.
Specifications
* Specifications are theoretical values under standard test conditions; actual performance may vary with load, terrain, temperature and usage. Specifications are subject to change without notice.
Product Details
Powered by a four-stroke air-cooled single-cylinder engine with a built-in balance shaft for effective vibration suppression. Delivering 21HP maximum power combined with a 10:1 compression ratio for strong, stable, vibration-free performance. Equipped with a PE30 carburetor for precise fuel delivery and improved combustion efficiency.
The main and sub frames are constructed from seamless steel tubing, providing high load-bearing capacity and impact resistance under extreme off-road conditions. Fitted with a forged steering stem and 6061 aluminum alloy handlebars for stable, durable handling. CNC-machined aluminum alloy folding levers fold up to 270° for convenient protection and storage.
Front and rear dual-piston caliper disc brakes deliver responsive braking performance, paired with 90/90-21 and 120/90-18 off-road tires for excellent traction. The front suspension (51-54-860mm) and rear suspension (395mm) are both fully adjustable, adapting flexibly to varied terrain.
A 13L large-capacity fuel tank supports long-distance off-road riding with fewer refueling stops. LED headlight and instrument panel provide clear illumination and real-time riding information. Built-in rear carrier and hand guards cover both off-road performance and cargo-carrying needs.
OEM/ODM customization services available.














Related Products

300cc Four-Stroke Air-Cooled Competition Dirt Bike – 21HP, 6-Speed, Balance Shaft
Balance-shaft 300CC four-stroke engine delivers smooth, powerful torque with minimal vibration on long, demanding rides—reducing rider fatigue, preventing component-loosening failures, and lowering downtime and maintenance costs.
Price
Price on request · Contact for a quote

300cc Water-Cooled Single-Cylinder 26HP Electric Start Dirt Bike
- 300cc water-cooled single-cylinder 4-stroke off-road motorcycle with 26HP output and electric start
Price
Price on request · Contact for a quote

300cc 23HP Four-Valve Off-Road Motorcycle with Balance Shaft
• 300CC four-valve engine with balance shaft delivers smooth, low-vibration power for comfortable long-distance riding and reduced maintenance needs.
Price
Price on request · Contact for a quote

300cc Four-Stroke Air-Cooled SOHC Off-Road Dirt Bike
- 300cc four-stroke air-cooled single overhead camshaft (SOHC) engine
Price
Price on request · Contact for a quote

300cc Four-Stroke Water-Cooled 29HP Professional Off-Road Motorcycle
- 29HP water-cooled DOHC 4-valve engine delivers ample power reserve for high-speed endurance racing, ensuring stable long-ride performance and reducing after-sales maintenance risk for customers
Price
Price on request · Contact for a quote

450cc Water-Cooled Off-Road Motorcycle, 43.5 HP, Dual Adjustable
- 450cc liquid-cooled, four-stroke SOHC, four-valve engine delivering 43.5 hp—linear, controllable power with explosive acceleration, engineered for high-intensity off-road and competitive racing.
Price
Price on request · Contact for a quote

50HP 300cc Two-Stroke Water-Cooled 6-Speed Off-Road Racing Motorcycle
• 50HP 300cc two-stroke water-cooled engine, race-tuned for competitive off-road with direct, hard-hitting power delivery—built for professional racing and serious riders.
Price
Price on request · Contact for a quote
