TM Racing MX 250 - 2010 Specifications and Reviews

The 2010 TM Racing MX 250 is a competitive two-stroke motocross machine designed for intermediate to advanced riders seeking race-proven performance. Powered by a high-compression 249cc single-cylinder engine with selectable ignition maps, it delivers sharp throttle response and agile handling through its aluminum perimeter frame. Best known for its Italian engineering and reliability in amateur and professional motocross competition.

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General information

CategoryCross / motocross
Year2010
ModelTM racing MX 250
 
 

Engine and Transmission Specifications

ClutchMultiple-disk in oil bath with hydraulic control
Transmission type,final driveChain
Gearbox5-speed
Cooling systemLiquid
Lubrication system3.5% oil mixture
IgnitionKokusan CDI Electronic with variable advance with two selectable maps through handlebar switch
Fuel systemCarburettor. Keihin PWM 38
Bore x stroke66.4 x 72.0 mm (2.6 x 2.8 inches)
Compression17.2:1
Engine typeSingle cylinder, two-stroke
Capacity:249.00 ccm (15.19 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter245 mm (9.6 inches)
Rear brakesSingle disc. Nissin pump and Brembo caliper
Front brakes diameter270 mm (10.6 inches)
Front brakesSingle disc. Nissin pump and Brembo caliper
Rear tyre dimensions110/90-19
Front tyre dimensions100/90-21
Rear suspensionSachs Boge (optional Ohlins )
Front suspensionMarzocchi USD 50mm
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

Track88%
City5%
Cornering90%
Daily Riding5%
Touring8%
Passenger5%

Rider Profile

Best ForThis bike is built for experienced off-road and motocross riders comfortable with a peaky two-stroke powerband and kick-start-only operation.
PurposeIt's a pure competition motocross machine designed for racing on dirt tracks and closed circuits, not for road use.
Rider FitRiding it demands strong physical fitness, active body positioning, and good clutch/throttle control to manage the aggressive two-stroke power delivery.
CharacterIt has the character of a raw, lightweight, boutique Italian race weapon that rewards aggressive, skilled riding with sharp handling and explosive acceleration.
Not Ideal ForIt is not suitable for commuting, touring, passengers, or riders seeking comfort and easy low-speed manageability.

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

Rider Reviews

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