Motocross Bikes
2020KTM 85 SX 17-14
33 fields on record
The 2020 KTM 85 SX 17-14 is the small-wheel version of KTM's 85cc youth motocross bike. Its liquid-cooled 84.9cc two-stroke single drives a six-speed gearbox, with 17- and 14-inch wheels. An 855 mm seat, 67.5 kg dry weight and a 5-litre tank suit smaller young racers.
- Capacity
- 84.9 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 67.5 kg
- Seat height
- 855 mm
- Power
- Not on record
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Other years
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2019
2020
2021
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2023
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2026
2027
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It exists purely for motocross racing and skill progression, bridging the gap between smaller youth bikes and full-size 125cc machines.
- Built for
- The high-revving 2-stroke engine delivers sharp, explosive power that rewards aggressive clutch work and precise throttle control on the track.
- Not ideal for
- It is entirely unsuitable for adult riders, road use, touring, or anyone seeking a comfortable, forgiving, everyday motorcycle.
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
- 84.9 ccm
- Engine type
- Single, two-stroke
- Bore x stroke
- 47.0 x 49.0 mm
- Compression
- 12.5:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- AET digital
- Lubrication system
- Mixture oil lubrication
- Power
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multi-disc clutch, Formula hydraulics
Dimensions & weight
- Wheelbase
- 1290 mm
- Seat height
- 855 mm
- Dry weight
- 67.5 kg
- Fuel capacity
- 5.00 litres
- Ground clearance
- 352 mm
Chassis & suspension
- Frame
- Central-tube frame with double-cradle
- Front suspension
- WP upside-down Ø 43 mm
- Rear suspension
- WP PDS shock absorber
- Front wheel travel
- 270 mm
- Rear wheel travel
- 300 mm
- Rake (fork angle)
- 24.0°
Brakes & wheels
- Front brakes
- Single disc. Four-piston calipers.
- Front brakes diameter
- 220 mm
- Rear brakes
- Single disc. Two-piston calipers.
- Rear brakes diameter
- 210 mm
- Front tyre
- 70/100-17
- Rear tyre
- 90/100-14
Other
- Color options
- Orange/white/black
- Comments
- Small wheel version of the KTM 85 SX. 17 and 14 inch wheels.
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 | 2011 | 2016 | 2020 | 2022 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 85 cc | 85 cc | 85 cc | 85 cc | 85 cc | 85 cc |
| Dry weight | 68 kg | 66 kg | 68 kg | 68 kg | 67 kg | 68 kg |
| Seat height | 900 mm | 845 mm | 855 mm | 855 mm | 865 mm | 845 mm |
| Fuel capacity | 5 L | 5 L | 5 L | 5 L | 5.2 L | 5.4 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 KTM 85 SX 17-14?
The 2020 KTM 85 SX 17-14 has a Capacity of 84.9 ccm (5.18 cubic inches).
How many gears does the KTM 85 SX 17-14 have?
The 2020 KTM 85 SX 17-14 has a Gearbox of 6-speed.
How much does the KTM 85 SX 17-14 weigh?
The 2020 KTM 85 SX 17-14 has a Dry weight of 67.5 kg (148.8 pounds).
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