Motocross Bikes
2011TM Racing MX 450FI
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The 2011 TM MX 450 Fi is a four-stroke motocrosser designed for competitive intermediate to advanced riders seeking a reliable, fuel-injected platform. Known for its responsive handling courtesy of Marzocchi forks and quality Nissin-Brembo braking, it delivers consistent performance across varied terrain with strong mid-range power delivery ideal for regional-level competition.
- Capacity
- 449.2 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- Not on record
Know it? Add it → - Seat height
- 918 mm
- Power
- 19.9 HP (14.5 kW) @ 7000 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross racing and aggressive off-road riding, not for commuting or general road use.
- Built for
- A raw, race-focused machine with premium components like titanium valves, hydraulic clutch and top-shelf suspension, delivering sharp, explosive handling.
- Not ideal for
- Not for new riders, daily commuters, or anyone wanting comfort, passenger capability, or long-distance touring.
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 usEngine
- Capacity
- 449.2 ccm
- Power
- 19.9 HP (14.5 kW) @ 7000 RPM
- Engine type
- Single, four-stroke
- Bore x stroke
- 95.0 x 63.4 mm
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Kick
- Ignition
- Kokusan generator, Microtec Electronic
- Valves per cylinder
- 4
- Lubrication system
- Dry sump with double rotor pump
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multiuple-disk in oil-bath with hydaulic control
Dimensions & weight
- Wheelbase
- 1280 mm
- Overall length
- 2030 mm
- Overall width
- 1250 mm
- Overall height
- 1300 mm
- Seat height
- 918 mm
- Fuel capacity
- 8.20 litres
- Ground clearance
- 305 mm
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Perimetral aluminium section
- Front suspension
- Marzocchi USD
- Rear suspension
- Sachs Boge ( optional Ohlins )
Brakes & wheels
- Front brakes
- Single disc. Nissin pump and Brembo caliper
- Front brakes diameter
- 270 mm
- Rear brakes
- Single disc. Nissin pump and Brembo caliper
- Rear brakes diameter
- 245 mm
- Front tyre
- 25/8-12
- Rear tyre
- 22/10-12
Other
- Color options
- Blue
Specs last verified against published sources: .
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 | 2011 | 2012 | 2016 |
|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc |
| Seat height | 918 mm | 918 mm | — |
| Fuel capacity | 8.2 L | 8.2 L | 8.2 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the TM Racing MX 450FI?
The 2011 TM Racing MX 450FI has a Capacity of 449.2 ccm (27.41 cubic inches).
What engine power does the TM Racing MX 450FI have?
The 2011 TM Racing MX 450FI has a Power of 19.9 HP (14.5 kW) @ 7000 RPM.
How many gears does the TM Racing MX 450FI have?
The 2011 TM Racing MX 450FI has a Gearbox of 5-speed.
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