14 August. Friday 2026
Kawasaki KX 450SR - 2023 Specifications and Reviews
The 2023 Kawasaki KX 450SR is a competitive motocross machine designed for intermediate to advanced riders seeking professional-level performance. Powered by a liquid-cooled 449cc single-cylinder four-stroke engine with advanced fuel injection, it delivers strong acceleration and reliable power across the rpm range. The aluminum perimeter frame and precision engineering make it renowned for excellent handling and consistency on demanding track conditions.
General information | |
| Category | Cross / motocross |
| Year | 2023 |
| Model | Kawasaki KX 450SR |
| | |
Engine and Transmission Specifications | |
| Clutch | Wet multi-disc, manual |
| Transmission type | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Ignition | Digital CDI with 3 Coupler Options |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. DFI® with 44mm Keihin throttle body |
| Bore x Stroke | 96.0 x 62.0 mm (3.8 x 2.4 inches) |
| Compression | 12.5:1 |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 449.0 ccm (27.40 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | Wire spoked |
| Rear brakes | Single disc. Petal disc. Single-piston caliper. |
| Diameter | 270 mm (10.6 inches) |
| Front brakes | Single disc. Semi-floating petal discs. Dual piston. |
| Rear tire | 120/80-19 |
| Front tire | 80/100-21 |
| Rear wheel travel | 307 mm (12.1 inches) |
| Rear Suspension | Uni-Trak® gas charged shock with piggyback reservoir with dual-range (4 turns stepless high speed/19-way low-speed) compression damping, 38-way rebound damping and adjustable preload |
| Front wheel travel | 315 mm (12.4 inches) |
| Front Suspension | 49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping |
| Trail | 122 mm (4.8 inches) |
| Rake (fork angle) | 27.6° |
| Frame type | Aluminum perimeter |
Physical measures and capacities | |
| Fuel capacity | 6.20 litres (1.64 US gallons) |
| Wheelbase | 1485 mm (58.5 inches) |
| Ground clearance | 340 mm (13.4 inches) |
| Overall width | 820 mm (32.3 inches) |
| Overall length | 2185 mm (86.0 inches) |
| Overall height | 1265 mm (49.8 inches) |
| Seat height | 955 mm (37.6 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 110.2 kg (242.9 pounds) |
| Dry weight | 105.6 kg (232.7 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Starter | Electric |
| Color options | Lime Green |
Performance Profile & Rider Fit
Best For
Track85%
City5%
Cornering90%
Daily Riding10%
Touring5%
Passenger5%
Rider Profile
| Best For | This bike suits experienced off-road and motocross riders comfortable with a tall, aggressive competition machine. |
| Purpose | Built purely for closed-course motocross racing, not for street use or general recreation. |
| Rider Fit | Demands strong rider fitness and confidence given its tall 955mm seat height, light weight, and full-size suspension travel. |
| Character | A race-ready, high-strung single-cylinder motocrosser that rewards aggressive riding with sharp handling and huge suspension travel. |
| Not Ideal For | Not suitable for beginners, commuting, passengers, or anyone wanting road-legal or touring capability. |
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 2023 Kawasaki KX 450SR is a powerful and versatile off-road motorcycle that delivers top-notch performance. With its 449cc engine, lightweight chassis, and advanced suspension system, this bike is built for tackling the toughest terrains with ease. The ergonomic design and adjustable handlebars make for a comfortable ride, while the responsive braking system ensures safety in all conditions. Whether you're an experienced rider looking for a high-performance machine or a beginner looking to step up your game, the KX 450SR is a top choice for off-road enthusiasts. In addition to its impressive performance, the 2023 Kawasaki KX 450SR also stands out for its sleek and modern design. The bold graphics and aggressive styling make a statement on the track, while the durable construction ensures long-lasting quality. With advanced features like launch control and adjustable engine mapping, this bike offers a customizable experience to suit your riding style. Overall, the KX 450SR is a standout option for riders looking for a capable and reliable off-road motorcycle that delivers both power and style.Add a Comment
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