TM Racing MX 125 - 2008 Specifications and Reviews

The 2008 TM Racing MX 125 is a competitive two-stroke motocross bike engineered for serious junior and amateur racers. Its liquid-cooled 123cc single-cylinder engine delivers sharp power delivery through a five-speed gearbox, while premium suspension options from Marzocchi and Ohlins ensure excellent handling on demanding tracks. Known for reliable performance and race-ready engineering, it remains a proven platform for aspiring motocross competitors.

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General information

CategoryCross / motocross
Year2008
ModelTM racing MX 125

Engine and Transmission Specifications

ClutchMultiple-disk in oil bath with hydraulic control
Gearbox5-speed
Cooling systemLiquid
IgnitionKokusan CDI Electronic with variable advance
Fuel systemCarburettor. Keihin PWK 38
Bore x stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Engine typeSingle cylinder, two-stroke
Capacity:123.50 ccm (7.54 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakes diameter245 mm (9.6 inches)
Rear brakesSingle disc
Front brakes diameter270 mm (10.6 inches)
Front brakesSingle disc
Rear tyre dimensions100/90-X19
Front tyre dimensions90/90-X21
Rear suspensionSachs Boge (optional Ohlins )
Front suspensionMarzocchi USD 50mm ( optional Ohlins 48mm )
Frame typePerimetral aluminium section

Physical measures and capacities

Fuel capacity8.70 litres (2.30 gallons)
 
 

Other specs

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

Performance Profile & Rider Fit

Best For

Track90%
City5%
Cornering80%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a purebred competition motocross machine best suited to experienced off-road riders who already know how to manage a peaky two-stroke power delivery.
PurposeBuilt exclusively for motocross racing and rough terrain riding rather than any form of road use.
Rider FitIts light, slim, kick-start-only chassis demands good physical fitness and confidence standing on the pegs for extended moto sessions.
CharacterA sharp, aggressive, race-focused two-stroke with premium Italian components that rewards aggressive, skilled inputs.
Not Ideal ForThis is not the right bike for commuting, touring, carrying a passenger, or anyone seeking a comfortable, road-legal, beginner-friendly ride.

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

Rider Reviews

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