Attribute | ![]() Yamaha YZ450F 2015 × | ![]() Suzuki RM-Z450 2018 × |
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General | ||
Production from (year) | 2015 | 2018 |
Make | Yamaha | Suzuki |
Model | Yamaha YZ450F | Suzuki RM-Z450 |
Category | Cross / motocross | Cross / motocross |
Engine and transmission | ||
Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
Valves per cylinder | 4 | 4 |
Fuel system | Injection. Yamaha Fuel Injection (YFI), Keihin 44mm | Injection |
Engine details | Titanium-valves | Aluminum cylinder with Suzuki Composite Electrochemical Material (SCEM) coating |
Displacement (cm³) | 449.7 | 449 |
Cooling system | Liquid | Liquid |
Transmission type,final drive | Chain | Chain |
Bore (mm) | 97 | 96 |
Stroke (mm) | 60.8 | 62.1 |
Gearbox | 5-speed | 5-speed |
Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
Driveline | - | Chain, DID520MXV4, 114 links |
Ignition | TCI: Transistor Controlled Ignition | Electronic ignition |
Lubrication system | - | Semi-dry sump |
Compression | 12.5:1 | 12.5:1 |
Chassis | ||
Front suspension | KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2 in travel | Inverted telescopic, coil spring, oil damped, adjustable damping force |
Rear suspension | Monoshock, adjustable preload and rebound damping, 12.4 in travel | BFRC - link type, coil spring, oil damped, adjustable spring preload and damping force |
Front brakes | Single disc. Hydraulic. | Single disc |
Rear brakes | Single disc. Hydraulic. | Single disc |
Diameter (mm) | 245 | - |
Frame type | Aluminum Bilateral Beam frame | - |
Front tyre | - | 80/100-21 |
Rear tyre | 120/80-19 | 110/90-19 |
Seat | Long, two-tone, motocross-style seat | - |
Wheels | - | Aluminum rims with stainless steel spokes. |
Rear wheel travel (mm) | 315 | 310 |
Rake (fork angle) (degree) | 28 | - |
Other | ||
Starter | Electric | Kick |
Color options |
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Dimensions | ||
Wheelbase (mm) | 1,481 | 1,480 |
Kerb weight (kg) | 111.1 | 112 |
Overall height (mm) | 1,290 | 1,260 |
Overall length (mm) | 2,174 | 2,175 |
Overall width (mm) | 826 | 835 |
Seat height (mm) | 975 | 960 |
Ground clearance (mm) | 335 | 330 |
Performance | ||
Fuel capacity (l) | 7.57 | 6.3 |