What category is the 2003 KTM 85 SX?

The 2003 KTM 85 SX has a Category of Prototype / concept model.

What is the engine size of the 2003 KTM 85 SX?

The 2003 KTM 85 SX has a Capacity: of 84.93 ccm (5.18 cubic inches).

What type of engine does the 2003 KTM 85 SX have?

The 2003 KTM 85 SX has a Engine type of Single cylinder.

Is the 2003 KTM 85 SX air cooled or liquid cooled?

The 2003 KTM 85 SX has a Cooling system of Liquid.

How many gears does the 2003 KTM 85 SX have?

The 2003 KTM 85 SX has a Gearbox of 6-speed.

How much does the 2003 KTM 85 SX weigh?

The 2003 KTM 85 SX has a Dry weight of 72.0 kg (158.7 pounds).

KTM 85 SX - 2003 Specifications and Reviews

The 2003 KTM 85 SX is a lightweight 85cc motocross bike designed for young intermediate riders and mini racing enthusiasts. Known for its nimble handling, liquid-cooled performance engine, and generous suspension travel, it delivers the agility and power needed for competitive off-road riding. Its compact 72kg frame and responsive 6-speed transmission make it an ideal platform for developing motocross skills.

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2003

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General information
Category	Prototype / concept model
Year	2003
Model	KTM 85 SX

Engine and Transmission Specifications
Gearbox	6-speed
Cooling system	Liquid
Fuel system	Carburettor
Bore x stroke	47.0 x 49.0 mm (1.9 x 1.9 inches)
Stroke	2
Engine type	Single cylinder
Capacity:	84.93 ccm (5.18 cubic inches)
Physical measures and capacities
Wheelbase	1,290 mm (50.8 inches)
Dry weight	72.0 kg (158.7 pounds)

KTM 85 SX dimensions and frame
Rear brakes diameter	200 mm (7.9 inches)
Rear brakes	Single disc
Front brakes diameter	220 mm (8.7 inches)
Front brakes	Single disc
Rear tyre dimensions	90/100-14
Front tyre dimensions	70/100-17
Rear suspension travel	300 mm (11.8 inches)
Front suspension travel	275 mm (10.8 inches)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track60%

City5%

Cornering85%

Daily Riding5%

Touring5%

Passenger0%

Rider Profile

Best For	This is a competition minibike built for young, developing riders who already have solid off-road fundamentals, not for beginners or adults.
Purpose	It exists purely for motocross racing and track training at the junior level, with a peaky two-stroke engine and race-focused chassis.
Rider Fit	Its tiny 890mm seat height and 68kg dry weight are tailored to smaller, lighter riders, typically kids in their early-to-mid teens transitioning from an 65cc bike toward full-size motocross machines.
Character	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.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

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Rider Reviews

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MotorcycleDB Review

The 2003 KTM 85 SX is a powerful and agile motocross bike that offers exceptional performance for young riders. With its 85cc 2-stroke engine, the bike delivers impressive power and torque, allowing riders to tackle challenging terrain with ease. The lightweight chassis and high-quality suspension make for smooth handling, while the responsive brakes provide reliable stopping power. Overall, the 2003 KTM 85 SX is a top choice for young riders looking to take their off-road skills to the next level. If you're in the market for a high-performance motocross bike for young riders, the 2003 KTM 85 SX is definitely worth considering. Its powerful 85cc 2-stroke engine, lightweight chassis, and quality suspension make for a winning combination on the track. With its impressive performance and reliable handling, this bike is sure to provide plenty of thrills for young riders looking to push their limits off-road.