Motocross Bikes
2005TM racing TM Racing MX 85 Junior
31 fields on record
The 2005 TM Racing MX 85 Junior is a lightweight motocross bike designed for young aspiring riders transitioning to competitive racing. Built around a liquid-cooled single-cylinder engine with advanced electronic ignition and hydraulic clutch control, it delivers responsive performance ideal for developing technique. Known for its nimble handling and reliable powerband, this machine excels in junior racing classes and training environments.
- Capacity
- 85.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 364.0 kg
- Seat height
- 918 mm
- Power
- Not on record
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How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross racing on closed off-road tracks, not for street use, commuting, or general recreation.
- Built for
- A sharp, race-bred two-stroke with premium suspension components (Paioli and Ohlins) that rewards aggressive, precise riding and rapid direction changes.
- Not ideal for
- Not suitable for adult riders, road riding, touring, passengers, or anyone seeking a comfortable or beginner-friendly bike.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 85.0 ccm
- Engine type
- Single, two-stroke
- Bore x stroke
- 47.9 x 47.0 mm
- Compression
- 17.2:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Koukusan CDI electronic w/ variable advance
- Lubrication system
- 3.5% oil mixture
- Power
- Not on record - add it
Transmission
- Gearbox
- 6-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
- 7.00 litres
- Ground clearance
- 305 mm
Chassis & suspension
- Frame
- Cr-Mo steel. Perimetral oval section.
- Front suspension
- Paioli USD 43 mm
- Rear suspension
- WP
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 70/100-17
- Rear tyre
- 90/100-14
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 | 2005 | 2007 | 2008 | 2010 | 2011 |
|---|---|---|---|---|---|
| Capacity | 85.00 ccm (5.19 cubic inches) | 85.00 ccm (5.19 cubic inches) | 85.00 ccm (5.19 cubic inches) | 85.00 ccm (5.19 cubic inches) | 85.00 ccm (5.19 cubic inches) |
| Dry weight | — | — | — | — | 364.0 kg (802.5 pounds) |
| Seat height | — | — | — | — | 918 mm (36.1 inches) |
| Fuel capacity | 7.00 litres (1.85 gallons) | 7.00 litres (1.85 gallons) | 7.00 litres (1.85 gallons) | 7.00 litres (1.85 gallons) | 7.00 litres (1.85 gallons) |
| Color options | — | — | — | — | Blue |
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 TM Racing MX 85 Junior?
The 2005 TM racing TM Racing MX 85 Junior has a Capacity of 85.0 ccm (5.19 cubic inches).
How many gears does the TM racing TM Racing MX 85 Junior have?
The 2005 TM racing TM Racing MX 85 Junior has a Gearbox of 6-speed.
How much does the TM racing TM Racing MX 85 Junior weigh?
The 2005 TM racing TM Racing MX 85 Junior has a Dry weight of 364.0 kg (802.5 pounds).
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