Tm Racing Smx 85 Junior 2T - 2026 Specifications and Reviews

The TM Racing SMX 85 Junior 2T is a lightweight supermoto designed for young riders progressing in competitive motocross and supermoto racing. Powered by a responsive 85cc liquid-cooled two-stroke engine with a six-speed gearbox, it delivers agile handling and quick acceleration ideal for technical courses. Known for its durable aluminum chassis and precision engineering, this bike excels in junior racing categories and youth development programs.

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General information

Color OptionsBlue/grey
CategorySuper motard
ModelTM Racing SMX 85 Junior 2T

Engine and Transmission Specifications

StartingKick
ClutchMultiuple-disk in oil-bath with hydaulic control
Final DriveChain (final drive)
Gearbox6-speed
Cooling SystemLiquid
IgnitionKokusan
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
InductionCarburettor. Keihin 28
Bore x Stroke47.9 x 47.0 mm (1.9 x 1.9 inches)
Capacity:84.9 ccm (5.18 cubic inches)

Physical measures and capacities

Fuel Capacity6.00 litres (1.59 US gallons)
Ground Clearance240 mm (9.4 inches)
Seat Height780 mm (30.7 inches) If adjustable, lowest setting.
Dry Weight72.0 kg (158.7 pounds)
 
 

Tm Racing Smx 85 Junior 2T dimensions and frame

Rear BrakesSingle disc. Nissin pump and Brembo caliper
Brake Disc Diameter190 mm (7.5 inches)
Front BrakesSingle disc. Brembo radial pump and caliper
Rear Tyre120/80-12
Front Tyre100/90-12
Rear SuspensionExtreme Shox
Front Suspension38 mm Mupo fork
FrameSelf-tempering aluminium deltabox type single beam with extruded, forged and microcast parts
 
 

Other specs

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Update specsReport missing specs or required updates.
DrivelineRegina RX3 chain
Engine typeSingle cylinder, four-stroke
Model year2025

Performance Profile & Rider Fit

Best For

Track85%
City15%
Cornering90%
Daily Riding10%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a purpose-built junior competition minibike intended for young, developing riders already comfortable with clutch, gears, and race-pace riding, not a beginner's first bike; note that the supplied specs describe a four-stroke engine despite the '2T
PurposeBuilt specifically for junior supermoto racing on tight, technical circuits where light weight and sharp handling matter far more than outright speed.
Rider FitDesigned around a small, young rider's frame with a low seat height and extremely light dry weight, demanding good physical conditioning and race craft rather than strength.
CharacterA nimble, high-revving, race-focused minibike with premium suspension and brake components that reward aggressive, precise riding.
Not Ideal ForNot suitable for adult riders, everyday commuting, long-distance touring, or carrying a passenger.

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

Rider Fit Visualizer

2026 Tm Racing Smx 85 Junior 2T Rider Ergonomics Assessment

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

Feet:

At 780mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2026 Tm Racing Smx 85 Junior 2T, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). 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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