Motocross Bikes
2025KTM 65 SX
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The 2025 KTM 65 SX is a lightweight minibike engineered for young riders progressing into competitive motocross. Powered by a nimble 65cc two-stroke engine with a six-speed gearbox, it delivers sharp handling and responsive power delivery ideal for learning racecraft. Known for its aggressive styling and genuine off-road capability, the 65 SX is the gateway bike for aspiring champions.
- Capacity
- 64.9 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 54.3 kg
- Seat height
- 730 mm
- Power
- Not on record
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What’s new for the 2025 KTM 65 SX
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Seat height | 750 mm (29.5 inches) | 730 mm (28.7 inches) |
| Fuel capacity | 3.70 litres (0.98 US gallons) | 4.50 litres (1.19 US gallons) |
| Wheelbase | 1270 mm (50.0 inches) | 1142 mm (45.0 inches) |
Other years
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built exclusively for motocross and off-road track racing to teach real race craft on a scaled-down, competition-grade two-stroke.
- Built for
- A snappy, high-revving two-stroke with a six-speed gearbox that rewards clutch and throttle skill, encouraging aggressive, race-focused riding.
- Not ideal for
- This is not suitable for adult riders, commuting, touring, passengers, or anyone seeking road-legal or long-distance capability.
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
- 64.9 ccm
- Engine type
- Single, two-stroke
- Bore x stroke
- 45.0 x 40.8 mm
- Compression
- 12.5:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Hidria Ecu EMS
- 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
- 1142 mm
- Seat height
- 730 mm
- Dry weight
- 54.3 kg
- Fuel capacity
- 4.50 litres
- Ground clearance
- 259 mm
Chassis & suspension
- Frame
- Chrome-molybdenum steel central-tube.
- Front suspension
- XACT 35 WP Upside-Down fork, Ø 35 mm
- Rear suspension
- XACT WP mono shock
- Front wheel travel
- 215 mm
- Rear wheel travel
- 254 mm
- Rake (fork angle)
- 25.5°
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 198 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 160 mm
- Front tyre
- 60/100-14
- Rear tyre
- 80/100-12
Other
- Color options
- Orange/white/black/purple
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 | 2009 | 2015 | 2021 | 2025 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 65 cc | 65 cc | 65 cc | 65 cc | 65 cc | 65 cc |
| Dry weight | 56 kg | 56 kg | 56 kg | 53 kg | 54 kg | — |
| Seat height | 750 mm | 750 mm | 750 mm | 750 mm | 730 mm | 730 mm |
| Fuel capacity | 3.4 L | 3.3 L | 3.5 L | 3.5 L | 4.5 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 65 SX?
The 2025 KTM 65 SX has a Capacity of 64.9 ccm (3.96 cubic inches).
How many gears does the KTM 65 SX have?
The 2025 KTM 65 SX has a Gearbox of 6-speed.
How much does the KTM 65 SX weigh?
The 2025 KTM 65 SX has a Dry weight of 54.3 kg (119.7 pounds).
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