2007 Suzuki QuadRacer R450 Review

A machine built for racing, with the help of WPSA Champion Doug Gust.

Nothing tests an ATV more then Racing

It is a sport in which machine engineering and rider confidence must combine to produce winning speed.

The 2007 Suzuki LT-R450 Quadracer. A ready-to-race ATV designed, developed and tested by a team of dedicated Suzuki engineers working with WPSA Pro Motocross Champion Doug Gust.

Powered by a , fuel-injected 450cc four-stroke engine, based on the race proven RM-Z450 four-stroke engine, this ATV is designed to deliver broad, smooth power. With fuel injection, vibration-reducing counterbalancers, a five-speed transmission and electric start. In a low-slung, wide track racing chassis with long-travel suspension, a high-tensile steel swingarm and heavy duty steering stem and rear axles. Complete with an exciting, aggressive new look.

A high-performance, race-ready ATV that inspires rider confidence. On the starting line for a WPSA motocross. Or at a local track on a Saturday afternoon.

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Features

Engine Features

Four-stroke, single cylinder, fuel injected, liquid cooled, DOHC. Four valve engine designed to be compact, lightweight and provide incredible performance
Innovative Suzuki Advanced Sump System allows the engine mass and crankshaft to be positioned close to the ground for a low center of gravity and also keeping the engine as short as possible
Aluminum cylinder bore is electro-plated with Suzuki’s own race proven SCEM (Suzuki Composite Electrochemical Material for improved heat transfer, lightweight and tighter piston clearance
Lightweight magnesium clutch cover, magneto cover, and cylinder head cover for minimal weight and maximum durability
Lightweight and durable titanium valves are used for precise valve control at high rpm and reduced reciprocating mass. Titanium intake valves measure 36mm and 29mm on the exhaust
Lightweight forged aluminum pistons use a new 3 ring design with cutaway sides, oil retaining grooves for reduced friction and the oil control ring features a high performance chrome nitride plating for less friction and improved strength
Five speed transmission is exceptionally compact with larger 1st and 2nd gears mounted outboard while the 3rd, 4th and 5th gears are mounted inside for a compact engine layout and superb handling
The LT-R450 utilizes a convenient electric starter for easier starts
A high capacity radiator is used to handle the high performance engine output combined with a compact and lightweight, ring type cooling fan for maximum effeciency
High performance cylinder head features a narrow included valve angle creating a compact cylinder head design, compact combustion chamber and featuring 12.0:1 compression ratio for maximum performance
Advanced and lightweight electronic fuel injection system with a 42mm bore and multi hole type injector for optimum atomization, smooth throttle response and maximum performance
High peformance ECM utilizes a high spec 16 bit CPU for quick fuel injection calculations and is designed to compact and lightweight
Stainless steel center exhaust system utilizes a compact centrally located muffler layout for improved mass centralization, improved stability, and higher cornering performance

Chassis Features

High-tensile steel frame designed for optimum rigidity, maximum durability and features a compact and lower profile for a lower center of gravity and unmatched cornering performance
Race-ready steel rear swingarm providing 3 times more flexibility and a smoother arc of movement for optimum handling perfomance in any environment
Incredibly wide independent double wishbone front suspension with fully adjustable Kayaba piggyback reservoir style front shocks featuring 40mm pistons and a sturdy 14mm shock rod for superb damping and incredible performance
Kayaba rear shock features adustable high and low speed compression, rebound and preload with a 50mm piston, 18mm rod and piggyback reservoir design providing 290mm of rear wheel travel
Special Dunlop radial tires designed specifically for the LT-R450 combined with smaller 10 x 5.5 inch aluminum rear wheels and 18 x 10 inch aluminum front wheels for a lower center of gravity and superb cornering stability
High peformance dual hydraulic front disc brakes with 160mm front rotors and a single hydraulic rear brake caliper mounted on a forged aluminum mounting bracket and a 190mm rear disc
Rugged Serrated large footpegs provide excellent grip and control
Aggressive styling highlights the high performance nature of the QuadRacer R450. The LT-R450 is styled with a low and wide profile to further emphasize the lightweight performance intent of the machine
The LT-R450 has a GSX-R and Hayabusa inspired multi-reflector headlight that is easily removable with a single bolt and an ultra compact LED tailight at the rear
Aggressively styled radiator shrouds, front and rear fenders, and T-shaped seat provide a sharp new look and maximum rider mobility for the control

Special

Minimum Age: 16 years old.

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SPECS

Engine: 450cc, 4-stroke, single cylinder, liquid-cooled, DOHC, 4-valve
Bore Stroke: 95.5mm x62.8mm
Compression Ratio: 95.5mm x62.8mm
Fuel System: Fuel Injection
Lubrication: Semi-Dry sump
Ignition: CDI
Transmission: 5-speed constant mesh
Final Drive: chain
Overall Length: 1845mm (72.6 in.)
Overall Width: 1245mm (49.0 in.)
Overall Height: 1085mm (42.7 in.)
Seat Height: 780mm (30.7 in.)
Ground Clearance: 240mm (9.4 in.)
Wheelbase: 1285mm (50.6 in.)
Dry Weight: 167kg (368 lbs.)
Suspension Front: Independent, double A-arm, fully adjustable preload, compression & rebound damping
Suspension Rear: Linkage-type, gas/oil damped, fully adjustable spring preload, adjustable compression and rebound damping
Brakes Front: Dual hydraulic discs
Brakes Rear: Single hydraulic disc
Tires Front: AT20 x 7 R10
Tires Rear: AT18 x 10 R8
Fuel Tank Capacity: 10 liters (2.6 gal.)
Color: Yellow, White