Comparison of Yamaha YZ450F 2017 and Yamaha YZ450F 2016 [S]ave
| Attribute |  Yamaha YZ450F 2017 × |  Yamaha YZ450F 2016 × |
|---|---|---|
| General | ||
| Production from (year) | 2017 | 2016 |
| Make | Yamaha | Yamaha |
| Model | Yamaha YZ450F | Yamaha YZ450F |
| 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. Yamaha Fuel Injection (YFI), Keihin 44mm |
| Engine details | Titanium-valves | Titanium-valves |
| Displacement (cm³) | 449.7 | 449.7 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 97 | 97 |
| Stroke (mm) | 60.8 | 60.8 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | TCI: Transistor Controlled Ignition | TCI: Transistor Controlled Ignition |
| Clutch | Wet multi-disc | Wet multi-disc |
| Lubrication system | Wet sump | Wet sump |
| Compression | 12.5:1 | 12.5:1 |
| Chassis | ||
| Front suspension | KYB Speed-Sensitive System, inverted fork: fully adjustable | KYB Speed-Sensitive System, inverted fork: fully adjustable |
| Rear suspension | Monoshock, adjustable preload and rebound damping | Monoshock, adjustable preload and rebound damping |
| Front brakes | Single disc. Hydraulic. | Single disc. Hydraulic. |
| Rear brakes | Single disc. Hydraulic. | Single disc. Hydraulic. |
| Diameter (mm) | 245 | 245 |
| Frame type | Semi double cradle | Aluminum Bilateral Beam frame |
| Front tyre | 80/100-21 | 80/100-21 |
| Rear tyre | 120/80-19 | 120/80-19 |
| Seat | Long, two-tone, motocross-style seat | Long, two-tone, motocross-style seat |
| Front wheel travel (mm) | 310 | 310 |
| Rear wheel travel (mm) | 315 | 315 |
| Rake (fork angle) (degree) | 28 | 28 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,481 | 1,481 |
| Kerb weight (kg) | 111.1 | 111.1 |
| Overall height (mm) | 1,290 | 1,290 |
| Overall length (mm) | 2,174 | 2,174 |
| Overall width (mm) | 826 | 826 |
| Seat height (mm) | 975 | 975 |
| Ground clearance (mm) | 335 | 335 |
| Performance | ||
| Fuel capacity (l) | 7.57 | 7.57 |
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