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Technical Overview
2004 GAS GAS SM 450 Technical Analysis & Specification Breakdown
Built around GAS GAS's super motard motorcycle platform, the 2004 GAS GAS SM 450 utilizes a 399 cc (24.4 cu in) liquid-cooled single cylinder, four-stroke layout. Internal engine geometry specifies a bore and stroke of 95.0 x 62.6 mm (3.7 x 2.5 inches).
On the scales, the SM 450 measures 105 kg (231 lbs) dry. Rider ergonomics and chassis geometry center around a 900 mm (35.4 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,475 mm (58.1 in) wheelbase engineered for balanced agility and highway composure. The 9.5-liter (2.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
900 mm (35.4 in)
Engine
Displacement399.0 ccm (24.35 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Bore x Stroke95.0 x 62.6 mm (3.7 x 2.5 inches)
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Frame TypeType deltabox, made of rectangular profile Cr-Mo
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
