Comparison of Yamaha Big Bear 400 4x4 IRS 2010 and Yamaha Grizzly 550 FI Auto 4x4 EPS 2012 [S]ave
| Attribute |  Yamaha Grizzly 550 FI Auto 4x4 EPS 2012 × |  Yamaha Big Bear 400 4x4 IRS 2010 × |
|---|---|---|
| General | ||
| Production from (year) | 2012 | 2010 |
| Make | Yamaha | Yamaha |
| Model | Yamaha Grizzly 550 FI Auto 4x4 EPS | Yamaha Big Bear 400 4x4 IRS |
| Category | ATV | ATV |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 4 | - |
| Fuel system | Injection. Yamaha Fuel Injection (YFI), 40mm | Carburettor. Mikuni® 33mm BSR |
| Engine details | Gear-driven crankshaft balancer shaft and rubber-damper engine mounts | - |
| Displacement (cm³) | 558 | 421 |
| Cooling system | Liquid | Oil & air |
| Transmission type,final drive | Shaft drive (cardan) | - |
| Bore (mm) | 92 | 83 |
| Stroke (mm) | 84 | 71.5 |
| Gearbox | Automatic | 5-speed |
| Fuel control | Single Overhead Cams (SOHC) | Single Overhead Cams (SOHC) |
| Driveline | Yamaha On-Command pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive | - |
| Ignition | TCI, 32-bit ECU | - |
| Compression | 9.3:1 | 8.6:1 |
| Chassis | ||
| Front suspension | Independent double wishbone | Independent double wishbone |
| Rear suspension | Independent double wishbone | Independent double wishbone |
| Front brakes | Double disc. Hydraulic | Double disc |
| Rear brakes | Double disc. Hydraulic | Double disc |
| Front tyre | 25/8-12 | 25/8-AT12 |
| Rear tyre | 25/10-12 | 25/10-AT12 |
| Wheels | Aluminum wheels | - |
| Front wheel travel (mm) | 127 | 147 |
| Rear wheel travel (mm) | 127 | 193 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
|
|
| Light | Dual 35W Halogen multireflector headlights and 21W/5W brakelight | - |
| Instruments | Digital LCD multifunction display; speedometer, odometer, dual tripmeter, hour meter, clock, fuel gauge and gear position | - |
| Dimensions | ||
| Wheelbase (mm) | 1,250 | 1,229 |
| Kerb weight (kg) | 293.9 | 284.9 |
| Overall height (mm) | 1,240 | 1,186 |
| Overall length (mm) | 2,065 | 2,017 |
| Overall width (mm) | 1,181 | 1,115 |
| Seat height (mm) | 904 | 894 |
| Ground clearance (mm) | 300 | 267 |
| Performance | ||
| Fuel capacity (l) | 20.06 | 15.14 |
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