2007 Suzuki QuadRacer LT-R450™


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QuadRacer LT-R450™



An ATV Like No Other

In a world where most riders are used to taking a stock sport ATV and bolting on a long list of aftermarket parts before heading to the racetrack, the 2007 LT-R450 is a whole new concept.

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.

  • 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
  • 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
  • Minimum Age: 16 years old.
  • 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



Engine Type
4-Stroke, Single Cylinder, DOHC, 4-Valve
Bore x Stroke
95.5 x62.8mm
Engine Cooling
Liquid Cooled
Fuel System
Fuel Injection


Front Suspension
Independent, Double A-Arm, Fully Adjustable Preload, Compression & Rebound Damping
Front Brake Type
Dual Hydraulic Discs
Front Tires
AT20 x 7 R10
Rear Suspension
Linkage-Type, Gas/Oil Damped, Fully Adjustable Spring Preload, Adjustable Compression And Rebound Damping
Rear Brake Type
Single Hydraulic Disc
Rear Tires
AT18 x 10 R8


Dry Weight
368 lbs. (167 kg)
Fuel Capacity
2.6 gal. (10.0 l)
Ground Clearance
9.4 in. (240mm)
Machine Dimensions (LxWxH)
72.6" x 49.0" x 42.7" (1845 x 1245 x 1085mm)
50.6 in. (1285mm)

Drive Train

Final Drive
5-Speed Constant Mesh


Yellow, White
6 Month Limited Warranty