Kawasaki KX85-II - 2021 Specifications and Reviews
The 2021 Kawasaki KX85-II is a lightweight two-stroke motocross bike engineered for young riders and junior competitors. Powered by an 84cc liquid-cooled engine with a piston reed valve design, it delivers sharp throttle response and nimble handling. Known for its proven reliability and competitive performance in youth motocross racing, it offers an ideal platform for developing fundamental riding skills.
General information | |
| Category | Cross / motocross |
| Year | 2021 |
| Model | Kawasaki KX85-II |
Engine and Transmission Specifications | |
| Clutch | Wet multi-disc, manual |
| Transmission type | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | Petrol mix |
| Ignition | Digital CDI |
| Fuel system | Carburettor. Keihin PWX28 |
| Bore x Stroke | 48.5 x 45.8 mm (1.9 x 1.8 inches) |
| Compression | 10.9:1 |
| Engine details | Piston reed valve |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 84.0 ccm (5.13 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Single disc |
| Diameter | 220 mm (8.7 inches) |
| Front brakes | Single disc. Dual-piston |
| Rear tire | 90/100-16 |
| Front tire | 70/100-19 |
| Rear wheel travel | 275 mm (10.8 inches) |
| Rear Suspension | Bottom-Link Uni-Trak with adjustable preload, 24-way compression and 21-way rebound damping |
| Front wheel travel | 275 mm (10.8 inches) |
| Front Suspension | 36 mm inverted telescopic fork with 20-way compression damping |
| Trail | 108 mm (4.3 inches) |
| Frame type | Perimeter, high-tensile steel |
Physical measures and capacities | |
| Fuel capacity | 5.00 litres (1.32 US gallons) |
| Wheelbase | 1310 mm (51.6 inches) |
| Ground clearance | 330 mm (13.0 inches) |
| Overall width | 765 mm (30.1 inches) |
| Overall length | 1920 mm (75.6 inches) |
| Overall height | 1150 mm (45.3 inches) |
| Seat height | 870 mm (34.3 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 77.0 kg (169.8 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Starter | Kick |
| Color options | Lime Green |
Performance Profile & Rider Fit
Best For
Track40%
City5%
Cornering60%
Daily Riding5%
Touring5%
Passenger0%
Rider Profile
| Best For | This is a small-wheel motocross machine built for younger or lighter riders progressing through junior competition, not a full-size adult bike. |
| Purpose | It exists purely for motocross track riding and racing, delivering quick two-stroke power in a compact, lightweight package. |
| Rider Fit | Its low seat height and very light 77 kg weight make it manageable for smaller or younger riders, but it is undersized and cramped for a full-grown adult. |
| Character | Sharp, revvy, and eager two-stroke character with immediate throttle response and a chassis tuned for tight, flickable handling on rough terrain. |
| Not Ideal For | It is not suitable for road use, commuting, touring, carrying a passenger, or for taller/heavier adult riders seeking a full-size machine. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1

MotorcycleDB Review
The 2021 Kawasaki KX85-II is a top-notch off-road motorcycle for young riders. Equipped with a liquid-cooled 85cc two-stroke engine, this bike delivers excellent power and performance. Its lightweight chassis and adjustable suspension make it easy to handle, giving riders confidence to take on rough terrain. The KX85-II also features disc brakes for reliable stopping power, ensuring a safe and thrilling riding experience. With its aggressive styling and race-ready features, the 2021 Kawasaki KX85-II is a fantastic choice for young motocross enthusiasts. Overall, the 2021 Kawasaki KX85-II is a fantastic off-road motorcycle for young riders who are eager to hit the trails. Its powerful engine, responsive handling, and reliable braking system make it a top contender in its class. With its sleek design and championship-winning pedigree, the KX85-II is sure to provide endless excitement for young riders looking to conquer the off-road. Whether they're hitting the track or exploring the trails, this bike is built to deliver thrills and performance.Add a Comment
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