Motocross Bikes
2019KTM 85 SX
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The 2019 KTM 85 SX is a lightweight two-stroke motocross bike designed for young and intermediate riders transitioning to competitive off-road racing. Known for its sharp handling and aggressive performance, it features WP suspension, a centralized frame design, and a potent 85cc engine that delivers responsive power delivery. Its compact dimensions and minimal weight make it the go-to choice for junior motocross competitors seeking a race-ready platform.
- Capacity
- 84.9 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 68.0 kg
- Seat height
- 890 mm
- Power
- Not on record
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What’s new for the 2019 KTM 85 SX
vs the 2018| Spec | 2018 | 2019 |
|---|---|---|
| Seat height | 750 mm (29.5 inches) | 890 mm (35.0 inches) |
| Fuel capacity | 5.00 litres (1.32 US gallons) | 5.20 litres (1.37 US gallons) |
| Front suspension | WP USD 43 mm (1.69 inches) | WP upside-down Ø 43 mm |
| Rear suspension | WP monoshock PDS | WP monoshock |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It exists purely for motocross racing and track training at the junior level, with a peaky two-stroke engine and race-focused chassis.
- Built for
- It's an aggressive, high-revving two-stroke racer that rewards precise clutch and throttle control with sharp, flickable handling on motocross tracks.
- Not ideal for
- This is not suitable for adult riders, commuting, road use, touring, or carrying a passenger.
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
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Moric digital 2M1
- Lubrication system
- 0,5 l Motorex Topspeed 4T
- Power
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch, operated hydraulically
Dimensions & weight
- Wheelbase
- 1290 mm
- Seat height
- 890 mm
- Dry weight
- 68.0 kg
- Fuel capacity
- 5.20 litres
- Ground clearance
- 362 mm
Chassis & suspension
- Frame
- Central-tube frame with double-cradle
- Front suspension
- WP upside-down Ø 43 mm
- Rear suspension
- WP monoshock
- Front wheel travel
- 275 mm
- Rear wheel travel
- 300 mm
- Rake (fork angle)
- 24.0°
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 240 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 200 mm
- Front tyre
- 70/100-17
- Rear tyre
- 90/100-14
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 | 2003 | 2007 | 2011 | 2015 | 2019 |
|---|---|---|---|---|---|
| Capacity | 85 cc | 85 cc | 85 cc | 85 cc | 85 cc |
| Dry weight | 72 kg | 68 kg | 68 kg | 68 kg | 68 kg |
| Seat height | 900 mm | 750 mm | 750 mm | 750 mm | 890 mm |
| Fuel capacity | 5 L | 5 L | 5 L | 5 L | 5.2 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 KTM 85 SX?
The 2019 KTM 85 SX has a Capacity of 84.9 ccm (5.18 cubic inches).
How many gears does the KTM 85 SX have?
The 2019 KTM 85 SX has a Gearbox of 6-speed.
How much does the KTM 85 SX weigh?
The 2019 KTM 85 SX has a Dry weight of 68.0 kg (149.9 pounds).
Shop this bike
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The 2019 KTM 85 SX motorcycle is a high-performance bike designed for young riders looking to take their skills to the next level. This bike features a powerful 2-stroke engine, lightweight chassis, and top-of-the-line suspension, making it ideal for motocross and off-road racing. The 85 SX also boasts a responsive and easy-to-handle design, allowing riders to navigate through challenging terrain with ease. With its aggressive appearance and advanced features, the 2019 KTM 85 SX is a top choice for aspiring young riders.
Overall, the 2019 KTM 85 SX motorcycle is a top-of-the-line option for young riders looking to compete in motocross and off-road racing. With its powerful engine, lightweight chassis, and top-notch suspension, this bike offers exceptional performance and handling. Whether you're hitting the track or exploring the trails, the 85 SX delivers an exhilarating riding experience for young enthusiasts.
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