Supermotos

2020TM racing TM Racing SMX 450 Fi 4T

26 fields on record

The 2020 TM Racing SMX 450 Fi 4T is a high-performance supermoto designed for experienced riders seeking aggressive street and track capability. Known for its potent 450cc four-stroke engine paired with premium Marzocchi and Brembo suspension components, it delivers responsive handling and stopping power. The lightweight perimetral aluminum frame and racing-spec Nissin brakes make it ideal for riders prioritizing performance and precision control.

Capacity: 449.0 ccm
Engine: Single single, four-stroke
Gearbox: 5-speed
Dry weight: Not on record
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Seat height: Not on record
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Power: 56.0 HP

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How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail20%

Cornering95%

City riding45%

Daily riding25%

Touring15%

Two-up10%

Track90%

Best for: It exists to carve tight, technical circuits and street corners with dirt-bike agility paired to sticky road tires and race-grade brakes.
Built for: Raw, punchy, and focused, this bike feels like a motocrosser wearing supermoto boots, with a snappy single-cylinder engine and razor-sharp steering.
Not ideal for: This is not the bike for riders wanting plush comfort, passenger accommodation, long-distance touring range, or genuine off-road trail capability.

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

Full specifications

Engine

Capacity: 449.0 ccm
Power: 56.0 HP
Engine type: Single single, four-stroke
Bore x stroke: 95.0 x 63.4 mm
Cooling system: Liquid
Fuel system: Injection
Starting: Electric & kick
Ignition: Kokusan generator, Microtec Electronic
Valves per cylinder: 4
Lubrication system: Dry sump with 2 pumps
Torque: Not on record - add it

Transmission

Gearbox: 5-speed
Transmission type: Manual
Clutch: Multiuple-disk in oil-bath with hydaulic control

Dimensions & weight

Fuel capacity: 7.50 litres
Seat height: Not on record - add it
Dry weight: Not on record - add it

Chassis & suspension

Frame: Perimetral aluminium
Front suspension: Marzocchi USD
Rear suspension: TM Racing monoshock
Front wheel travel: 50 mm

Brakes & wheels

Front brakes: Single disc. Brembo radial pump and caliper
Front brakes diameter: 305 mm
Rear brakes: Single disc. Nissin pump and Brembo caliper
Front tyre: 110/70-ZR17
Rear tyre: 150/60-ZR17

Other

Color options: Blue/white
Comments: Optional electric starter.

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

Rider Reviews

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MotorcycleDB Review

The 2020 TM Racing SMX 450 Fi 4T motorcycle is an impressive machine that offers outstanding performance and handling. With its fuel-injected 450cc engine, this bike delivers smooth and powerful acceleration, making it a great choice for both off-road and street riding. The high-quality components and attention to detail in its construction ensure that riders will have a reliable and enjoyable experience on the TM Racing SMX 450.

One of the standout features of the 2020 TM Racing SMX 450 Fi 4T is its exceptional build quality. From the sturdy frame to the top-of-the-line suspension components, this bike is built to handle whatever terrain you throw at it. Additionally, the fuel injection system ensures optimal fuel delivery and performance, making this motorcycle a top choice for riders who demand the best. Overall, the TM Racing SMX 450 Fi 4T is a top-tier motorcycle that offers reliability, power, and precision handling for riders of all skill levels.