Comparison of Suzuki RM-Z450 2020 and Yamaha YZ450F 2011 [S]ave
| Attribute |  Yamaha YZ450F 2011 × |  Suzuki RM-Z450 2020 × |
|---|---|---|
| General | ||
| Production from (year) | 2011 | 2020 |
| 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 | 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 | CDI | Electronic ignition |
| Clutch | - | Wet, multi-plate rack-and-pinion clutch |
| Lubrication system | Dry sump | 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 | Showa inverted telescopic, coil spring, oil damped, adjustable damping force |
| Rear suspension | KYB Fully adjustable single shock | Showa BFRC - link type, coil spring, oil damped, adjustable spring preload and damping force |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 245 | 270 |
| Frame type | - | Aluminum alloy, twin-spar |
| Front tyre | 80/100-21 | 80/100-21 |
| Rear tyre | 120/80-19 | 110/90-19 |
| Wheels | - | Black anodized rims with a cross-section. Bridgestone X30 tires. |
| Rear wheel travel (mm) | 315 | 310 |
| Other | ||
| Starter | Electric | Kick |
| Color options |
|
|
| Dimensions | ||
| Wheelbase (mm) | 1,491 | 1,480 |
| Kerb weight (kg) | 111.1 | 112 |
| Overall height (mm) | 1,311 | 1,260 |
| Overall length (mm) | 2,192 | 2,175 |
| Overall width (mm) | 823 | 835 |
| Seat height (mm) | 998 | 960 |
| Ground clearance (mm) | 381 | 330 |
| Performance | ||
| Fuel capacity (l) | 6.17 | 6.3 |
| Oil capacity (l) | 1.2 | - |
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