Motocross Bikes
2009TM Racing MX 85 Junior
30 fields on record
The 2009 TM Racing MX 85 Junior is a two-stroke motocross bike for young racers. Its liquid-cooled 85cc single drives through a six-speed gearbox and chain. With a 7-litre tank, it is built for competition by teenage riders moving up from smaller bikes.
- Capacity
- 85.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- Not on record
Know it? Add it → - Seat height
- 918 mm
- Power
- Not on record
Know it? Add it →
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.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- 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
- Electric
- Ignition
- Kokusan CDI Electronic with 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
- Fuel capacity
- 7.00 litres
- Ground clearance
- 305 mm
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Cr-Mo steel Perimetral oval section
- Front suspension
- Paioli USD 43
- 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
- 70/90-x17
- Rear tyre
- 90/90-x14
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 | 2005 | 2007 | 2008 | 2009 | 2010 | 2011 |
|---|---|---|---|---|---|---|
| Capacity | 85 cc | 85 cc | 85 cc | 85 cc | 85 cc | 85 cc |
| Seat height | 918 mm | 918 mm | 918 mm | 918 mm | 918 mm | 918 mm |
| Fuel capacity | 7 L | 7 L | 7 L | 7 L | 7 L | 7 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 85 Junior?
The 2009 TM Racing MX 85 Junior has a Capacity of 85.0 ccm (5.19 cubic inches).
How many gears does the TM Racing MX 85 Junior have?
The 2009 TM Racing MX 85 Junior has a Gearbox of 6-speed.
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