Motocross Bikes

2012TM racing TM Racing MX 144

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The 2012 TM Racing MX 144 is a lightweight 144cc two-stroke motocross bike designed for young and amateur riders entering the sport. Known for its responsive power delivery and agile handling, this machine excels in youth racing categories with its liquid-cooled engine, advanced CDI ignition system, and smooth hydraulic clutch control for consistent performance on track.

Capacity: 143.4 ccm
Engine: Single, two-stroke
Gearbox: 5-speed
Dry weight: 364.0 kg
Seat height: 918 mm
Power: 28.0 HP (20.6 kW)

⇄ Compare with another bike All model years

What’s new for the 2012 TM racing TM Racing MX 144

vs the 2011

Spec	2011	2012
Power	19.9 HP (14.5 kW) @ 7000 RPM	28.0 HP (20.6 kW)
Front brakes	Single disc. Nissin pump and Brembo caliper	Single disc. Braking wave Disk. With Nissin pump and caliper.
Rear brakes	Single disc. Nissin pump and Brembo caliper	Single disc. Braking wave Disk. With Nissin pump and caliper.

Other years 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail95%

Cornering88%

City riding5%

Daily riding10%

Touring8%

Two-up5%

Track80%

Best for: Built purely for motocross racing and off-road competition, with a light two-stroke powerplant, premium suspension, and no road-going equipment.
Built for: A raw, high-revving two-stroke racer that rewards precise throttle control and aggressive riding with sharp, lightweight agility on rough terrain.
Not ideal for: Not suitable for daily commuting, highway touring, carrying passengers, or riders seeking comfort and low-maintenance simplicity.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us

Your height

Inseam (optional)

Units

At 918mm, a rider of 175cm with a 79cm (estimated) inseam will not reach the ground comfortably on the 2012 TM racing TM Racing MX 144, with a cramped knee angle of around 80 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 143.4 ccm
Power: 28.0 HP (20.6 kW)
Engine type: Single, two-stroke
Power/weight ratio: 0.0769 HP/kg (dry)
Bore x stroke: 56.0 x 58.2 mm
Compression: 17.2:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Kick
Ignition: Kokusan CDI Electronic with variable advance with two selectable maps
Lubrication system: 3.5% oil mixture

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Multiple-disk in oil bath with hydraulic control

Dimensions & weight

Wheelbase: 1280 mm
Overall length: 2030 mm
Overall width: 1250 mm
Overall height: 1300 mm
Seat height: 918 mm
Dry weight: 364.0 kg
Fuel capacity: 8.70 litres
Ground clearance: 305 mm

Chassis & suspension

Frame: Alluminium perimetral
Front suspension: Marzocchi USD 50mm
Rear suspension: Sachs Boge (optional Ohlins )

Brakes & wheels

Front brakes: Single disc. Braking wave Disk. With Nissin pump and caliper.
Front brakes diameter: 270 mm
Rear brakes: Single disc. Braking wave Disk. With Nissin pump and caliper.
Rear brakes diameter: 245 mm
Front tyre: 80/100-21
Rear tyre: 100/90-19

Other

Color options: Blue/white

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2008	2010	2012	2013	2015	2017
Capacity	143 cc	143 cc	143 cc	143 cc	143 cc	143 cc
Dry weight	364 kg	364 kg	364 kg	364 kg	364 kg	364 kg
Seat height	918 mm	918 mm	918 mm	918 mm	918 mm	918 mm
Fuel capacity	8.7 L	8.7 L	8.7 L	8.7 L	8.7 L	8.7 L