2023 TM Racing MX 450 Fi 4T Technical Analysis & Specification Breakdown
Built around TM Racing's cross - motocross motorcycle platform, the 2023 TM Racing MX 450 Fi 4T utilizes a 449 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke layout. Internal engine geometry specifies a bore and stroke of 95.0 x 63.4 mm (3.7 x 2.5 inches).
On the scales, the MX 450 Fi 4T measures 107.5 kg (237 lbs) dry. Rider ergonomics and chassis geometry center around a 1 mm (0 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops. The 7.5-liter (2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's TM Racing archive, this model family spans 3 indexed model years from 2020 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
1 mm (0 in)
Engine
Displacement449.0 ccm (27.40 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsTitanium valves
Bore x Stroke95.0 x 63.4 mm (3.7 x 2.5 inches)
Valves/Cylinder4
Fuel SystemInjection. 44 mm throttle body
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionKokusan, ECU
LubricationDry sump with 2 pumps
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchMultiuple-disk in oil-bath with hydaulic control
Chassis
Frame TypeSelf-tempering aluminium deltabox type single beam with extruded, forged and microcast parts
Rake27.0°
Front SuspensionKayaba Ø 48 mm
Front Travel310 mm (12.2 inches)
Rear SuspensionTM Racing monoshock
Rear Travel300 mm (11.8 inches)
Ground Clearance360 mm (14.2 inches)
Wheels & Brakes
Front Tyre80/100-21
Rear Tyre110/90-19
Front BrakesSingle disc. Brembo
Front Brake Ø270 mm (10.6 inches)
Rear BrakesSingle disc. Nissin
Rear Brake Ø245 mm (9.6 inches)
WheelsWire spoked, blue rims
Dimensions & Weight
Dry Weight107.5 kg (237.0 pounds)
Seat Height1,000 mm (39.4 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
