The Yamaha Grizzly 450 Auto 4×4 IRS motorcycle specifications include a 421 cc (25.69 cu in) engine, a 5-speed gearbox, and a listed weight of 267.6 kg (590 lb).
Key specifications
The 2009 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha Grizzly 450 Auto 4×4 IRS compares
This compares the motorcycle with all Yamaha models in this specifications database. The blue marker is this model and the grey line is the Yamaha database average.
About 23% lower than the Yamaha database average. Around the 49th percentile across Yamaha models.
About 7% taller than the Yamaha database average. Around the 83rd percentile across Yamaha models.
About 16% larger than the Yamaha database average. Around the 64th percentile across Yamaha models.
Yamaha database percentile rankings
Percentiles show where this motorcycle sits across the Yamaha specifications database. They are descriptive database rankings, not performance ratings.
421 cc — larger displacement than about 49% of Yamaha models.
851 mm — taller than about 83% of Yamaha models.
15.1 L — larger than about 64% of Yamaha fuel tanks in this database.
Dimensions compared with Yamaha average
Each measurement is compared with the average value across Yamaha models where that dimension is available.
1,994
2,082
4% below average.
1,232
1,416
13% below average.
851
793
7% above average.
274
181
52% above average.
Mechanical overview
Additional useful specifications
| Front tire size | 25/7-12 |
|---|---|
| Rear tire size | 25/10-12 |
| Rear tire width | 25 mm |
| Rear tire aspect ratio | 10% |
| Rear rim diameter | 12 in |
| Bore/stroke ratio | 1.13:1 (Oversquare) |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 421 cc (25.69 cu in) |
| Bore × stroke | 84.5 x 75 mm (3.3 x 3.0 inches) |
| Compression ratio | 10.0:1 |
| Cooling system | Liquid |
| Fuel system | Carburettor. Mikuni® 33mm BSR |
| Fuel control | Single Overhead Cams (SOHC) |
| Ignition | DC-CDI |
| Starter | Electric |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Shaft drive (cardan) (final drive) |
Chassis and suspension
| Front suspension | Independent double wishbone |
|---|---|
| Rear suspension | Independent double wishbone |
| Front wheel travel | 127 mm (5.0 inches) |
| Rear wheel travel | 127 mm (5.0 inches) |
Brakes, wheels and tires
| Front brakes | Double disc |
|---|---|
| Rear brakes | Double disc |
| Front tire | 25/7-12 |
| Rear tire | 25/10-12 |
Dimensions and weight
| Dry weight | 267.6 kg (590 lb) |
|---|---|
| Seat height | 851 mm (33.5 inches) |
| Overall length | 1,994 mm (78.5 inches) |
| Wheelbase | 1,232 mm (48.5 inches) |
| Ground clearance | 274 mm (10.8 inches) |
Fuel and emissions
| Fuel capacity | 15.14 L (4.00 US gal) |
|---|
Other specifications
| Color options | Black Metalic, Hunter Green, Steel Blue, Realtree® AP HD® Camouflage |
|---|---|
| Price as new | US$ 6499. MSRP depends on country, taxes, accessories, etc. |
| Comments | Yamaha On-Command® pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive. |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Yamaha models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Yamaha information before relying on them. Visit the official Yamaha website.