The Suzuki RMZ450 is a high-performance motocross bike featuring a 449cc liquid-cooled single-cylinder engine that delivers 55 hp and 50 Nm of torque. You’ll appreciate its lightweight 112 kg aluminum twin-spar frame and race-ready dimensions with a 960mm seat height. The bike runs on 21-inch front and 19-inch rear wheels with specialized knobby tires for ideal off-road traction. Discover why this machine has remained a competitive choice since 2005.

Suzuki, produced from 2005 to the present.

Engine and Displacement of Suzuki RMZ450

449cc liquid-cooled 4-stroke single-cylinder DOHC 4-valve.

Chassis of Suzuki RMZ450

Twin-spar aluminum perimeter frame.

Wheels & Tires of Suzuki RMZ450

Front: 21-inch; Rear: 19-inch. Dunlop MX52 or MX33 knobby tires.

Transmission and Clutch of Suzuki RMZ450

5-speed constant mesh, wet multi-plate clutch, chain drive.

Fuel System and Fuel Capacity of Suzuki RMZ450

Keihin EFI (post-2008), Keihin FCR carburetor (2005-2007). 6.2L (1.64 gal).

Weight, Seat Height, Dimensions, Wheelbase

• Weight: 112 kg (247 lbs)
• Seat Height: 960 mm (37.8 inches)
• Dimensions: 2185×825×1260 mm (86.0×32.5×49.6 inches)
• Wheelbase: 1480 mm (58.3 inches)
• Ground Clearance: 325 mm (12.8 inches)

Top Speed and Technical Details of Suzuki RMZ450

• Power: 55 hp/41 kW @ 9000 rpm
• Torque: 50 Nm @ 7500 rpm
• Bore × Stroke: 96.0 × 62.1 mm
• Compression ratio: 12.5:1
• Top speed: 120 km/h (75 mph)
• Rake/Trail: 28.5 degrees/122 mm (4.8 inches)

Summary of Suzuki RMZ450

The Suzuki RMZ450 is a competition motocross motorcycle featuring a 449cc liquid-cooled single-cylinder engine housed in an aluminum twin-spar frame.

• Weighing 112kg (247lbs), this race-ready machine underwent significant redesigns in 2008 (EFI introduction), 2013, and 2018.
• Identifiable by its yellow bodywork with blue accents, the RMZ450 features a distinctive single exhaust system (dual exhaust pre-2008).
• Common replacement parts include radiators, plastic body panels, suspension components, and subframes.
• Engine numbers are located on the right crankcase near the countershaft sprocket, while VIN plates are attached to the steering head.
• Parts compatibility typically groups 2005-2007, 2008-2012, 2013-2017, and 2018-present models, with each generation requiring specific components.