GAS GAS SM 450 Supermotard - 2008 Specifications and Reviews

The 2008 GAS GAS SM 450 Supermotard is a lightweight, agile urban and performance-oriented machine ideal for riders seeking nimble handling and fun on mixed terrain. Powered by a 124cc liquid-cooled single-cylinder engine with six-speed transmission, it's known for its exceptional maneuverability and responsive character, making it perfect for both commuting and spirited riding.

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General information

CategorySuper motard
Year2008
ModelGAS GAS SM 450 Supermotard

Engine and Transmission Specifications

ClutchMultidisc in oil bath, hydraulically operated.
Transmission typefinal driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication systemBy fuel mixture.
IgnitionIntegrated in the injection system.
Fuel systemCarburettor
Bore x stroke97.0 x 60.8 mm (3.8 x 2.4 inches)
Stroke4
Engine typeSingle cylinder
Capacity:124.00 ccm (7.57 cubic inches)

Physical measures and capacities

Wheelbase1,465 mm (57.7 inches)
Ground clearance310 mm (12.2 inches)
Seat height900 mm (35.4 inches) If adjustable, lowest setting.
Dry weight119.0 kg (262.4 pounds)
 
 

GAS GAS SM 450 Supermotard dimensions and frame

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter300 mm (11.8 inches)
Front brakesSingle disc
Rear tyre dimensions120/80-19
Front tyre dimensions90/90-21
Rear suspensionOne-piece aluminium swing arm, progressive system,
Front suspension45 mm upside-down fork, 290 mm travel.
Frame typeDeltabox* built with elliptic profile CR / Mo tubing.

Speed and acceleration

Color optionsRed/white/black
Fuel capacity6.70 litres (1.77 gallons)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

4.5s
0-60 mph (est.)

Best For

Track80%
City70%
Cornering95%
Daily Riding45%
Touring20%
Passenger25%

Rider Profile

Best ForThis bike suits experienced riders comfortable with a light, punchy, high-strung single-cylinder machine that demands active input.
PurposeBuilt for supermoto-style thrills, sharp cornering, and tight, technical roads or track days rather than long-distance travel.
Rider FitThe tall seat height and minimal weight favor taller, fit riders who can confidently manage a top-heavy stance at stops.
CharacterA raw, aggressive, flickable machine that rewards an athletic riding style and eagerness to attack corners.
Not Ideal ForThis is not the right choice for riders seeking plush comfort, passenger-friendly touring, or serious off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2008 GAS GAS SM 450 Supermotard Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 900mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2008 GAS GAS SM 450 Supermotard, with a relaxed knee angle of around 145 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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