- Single cylinder, liquid-cooled, 4-stroke, SOHC, 2-valves
- Ultramatic® V-belt with all wheel engine braking, H/L/N/R/P
- Carburettor BSR33/1
- 421 L
The Yamaha Grizzly450 IRS is ready to serve you with loyalty regardless of what type of terrain lies under its wheels.
Built to be an all-around ATV with an attitude, the Grizzly 450 IRS has been fitted with smart technology, from comprehensive LCD instrumentation and a 3-mode On-Command system for fast selection between drive settings, to superb traction on every kind of terrain. On top of that is reliable to the core, requires low maintenance and is also pretty fuel-efficient.
The ATV’s heart is a torque-heavy, single cylinder, liquid-cooled, 4-stroke, SOHC, 2-valves engine with a displacement of 421cc. The engine has enough grunt to help you tackle even the most demanding tracks.
The Yamaha Grizzly 450 IRS is also pretty easy to maneuver, because is fitted with effort-reducing technologies like automatic transmission and Electric Power Steering. In addition, Yamaha designers made sure to give the ATV an ergonomic design that will enable you to feel comfortable after a long day in the saddle.
Hit the jump for more information on the 2013 Yamaha Grizzly 450 IRS.
Yamaha Grizzly 450 IRS
If your job combines heavy haulage with unpredictable ground conditions, the Grizzly 450 IRS is an unstoppable and dependable work partner that’s ideal for busy days.
It’s packed with intelligent technology that makes every job easier - from comprehensive LCD instrumentation and a 3-mode On-Command® system for fast selection between drive settings, to superb traction on every kind of terrain. It’s also extremely fuel-efficient and has very low maintenance needs.
Taking on an extra-large job? A range of durable, practical accessories - from winches to ploughs to lighting kits - help you get the job done with minimum fuss.
Yamaha Utility ATVs are built with one goal in mind: easing the workloads of those in tough outdoor environments.
This philosophy is engineered in every detail. Like torque-heavy engines that get you moving when terrain is tricky, or loads are heavy; effort-reducing technologies like automatic transmission and Electric Power Steering; and ergonomic designs which mean you’ll still feel comfortable after a long day in the saddle. Plus, they run economically and require low maintenance.
Yamaha Utility ATVs are tireless workhorses - but that’s not all they are. When time permits, these vehicles pack the punch to give riders a big dose of fun, too.
Big power lies at the heart of the Grizzly 450 IRS. The liquid-cooled 421cc engine offers the kind of low-rpm torque needed to get the heaviest loads moving. In addition, Ultramatic® transmission supplies engine braking to your ATV’s driven wheels especially on steep, downhill working areas.
A one-piece frame reduces weight as well as being strong and rigid construction. It incorporates an extra-durable rear gear assembly, connected at three (rather than the normal two) separate points for best-ever protection against the strains of regular, heavy-duty use. A short, springy stabilizer bar offers increased support.
Multi-disc wet braking
Yamaha’s sealed oil-bathed multi-disc brake setup is ultra-durable, and protects the system from becoming clogged with the mud or stones that are thrown up during use. It also provides stronger, more consistent stopping power and is easier to adjust.
On-Command® drive system
Yamaha’s push-button On-Command 2WD/4WD system (with locked-differential 4WD) lets you switch between drive modes, giving near-instantaneous transition from cruising to climbing.
Independent Rear Suspension (IRS)
Independently linking each individual rear wheel to the chassis means that the movement of one wheel is not affected by the movement of the other. This helps the ATV to soak up uneven terrain. It’s a major contributor to rider comfort and peace of mind.
Digital LCD multifunction display
The LCD data multifunction display has an engine hour meter that provides an accurate picture of usage. Other display readouts indicate time, overall mileage, trip meter, fuel status and transmission mode.
High cargo capacity
Offering generous storage capacity, the Grizzly 450 IRS can carry a maximum payload of 120 kg - 40 kg at the front, and 80 kg at the rear. A lightweight hitch mount is capable of towing heavy loads up to 600kg.
Comfort and practicality
The lightweight seat designed for cold-weather riding comfort, plus a range of durable, practical accessories - such as winches, plough, lighting kits and battery chargers - help take the strain out of your busy working day.
|Engine type||Single cylinder, liquid-cooled, 4-stroke, SOHC, 2-valves|
|Bore x stroke||84.5 mm x 75.0 mm|
|Compression ratio||10.0 : 1|
|Lubrication system||Wet sump|
|Fuel system||Carburettor BSR33/1|
|Transmission system||Ultramatic® V-belt with all wheel engine braking, H/L/N/R/P|
|Drive system||On-Command® 2WD/4WD/diff-lock|
|Front suspension system||Independent double wishbone, 5 position preload adjustment, 160 mm wheel travel|
|Rear suspension system||Independent double wishbone, 5 position preload adjustment, 180 mm wheel travel|
|Front brake||Dual hydraulic disc|
|Rear brake||Sealed oil-bathed multi-disc|
|Overall length||1,993 mm|
|Overall width||1,093 mm|
|Overall height||1,120 mm|
|Seat height||840 mm|
|Minimum ground clearance||245 mm|
|Min. turning radius||3.0 m|
|Fuel tank capacity||15.0 litres|
|Oil tank capacity||2.6 litres|
|Front rack||40 kg|
|Rear rack||80 kg|