KTM 250 EXC Enduro (1999-00)

The KTM 250 EX/C Enduro motorcycle was produced from 1999-2000 and is powered by a liquid-cooled, two-stroke, single-cylinder engine with a capacity of 249cc. The engine uses a 1:50-1:60 mix of two-stroke oil and utilizes the Kokusan 2K-1 CDI induction with an NGK BR 8 ECM spark plug. The electronic ignition is kick-started and capable of reaching a max power of 12.7 kW / 17 hp at 7400 rpm.

The motorcycle features a wet, multiplate clutch and a 5-speed transmission with gear ratios of 1st 15:29, 2nd 18:26, 3rd 19:22, 4th 21:20, and 5th 23:18. The final drive is through a chain with a ratio of 14:50. The frame is a central chrome-moly-steel frame and has front suspension by WP Extreme 50 mm upsidedown forks with a wheel travel of 280 mm / 11.0 in, and rear suspension through a WP Progressive Damping System shock absorber and aluminum swingarm, with a wheel travel of 320 mm / 12.6 in.

The braking system consists of a single 260 mm disc with a floating caliper in the front and a single 220 mm disc with a floating caliper in the rear. The front wheel uses a 90/90-21″ 54R tire while the rear wheel uses a 140/80-18″ 70R tire. The motorcycle has a steering head angle of 63.5o, a wheelbase of 1481 mm / 58.3 in, a ground clearance of 385 mm / 15 in, and a seat height of 925 mm / 36.4 in.

The dry weight of the motorcycle is 103.7 kg / 229 lbs, and it has a fuel capacity of 9.5 L or 12 L / 2.5 US gal or 3.2 US gal / 2.1 Imp gal or 2.6 Imp gal.

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Technical specifications:

Make Model: KTM 250 EX/C Enduro

Year: 1999 – 00

Engine: Two stroke, single cylinder

Capacity: 249 cc / 15.2 cu in

Bore x Stroke: 67.5 x 69.5 mm

Cooling System: Liquid cooled

Lubrication: Two-stroke oil, mix: 1:50 – 1:60

Induction: Kokusan 2K-1 CDI

Spark Plug: NGK BR 8 ECM

Ignition: Electronic

Starting: Kick

Max Power: 12.7 kW / 17 hp @ 7400 rpm

Clutch: Wet, multiplate, hydraulically operated

Transmission: 5 Speed

Primary Drive Ratio: 25:72

Gear Ratios: 1 st 15:29 / 2nd 18:26 / 3rd 19:22 / 4th 21:20 / 5th 23:18

Final Drive Ratio: 14:50

Final Drive: Chain, 5/8″ x 1/4″

Frame: Central chrome-moly-steel frame

Front Suspension: WP Extreme 50 mm upsidedown fork

Front Wheel Travel: 280 mm / 11.0 in

Rear Suspension: WP Progressive Damping System shock absorber, aluminium swingarm

Rear Wheel Travel: 320 mm / 12.6 in

Front Brakes: Single 260 mm disc, floating caliper

Rear Brakes: Single 220 mm disc, floating caliper

Front Tyre: 90/90 – 21″ 54R

Rear Tyre: 140/80 – 18″ 70R

Steering Head Angle: 63.5o

Wheelbase: 1481 mm / 58.3 in

Ground Clearance: 385 mm / 15 in

Seat Height: 925 mm / 36.4 in

Dry Weight: 103.7 kg / 229 lbs

Fuel Capacity: 9.5 L or 12 L / 2.5 US gal or 3.2 US gal / 2.1 Imp gal or 2.6 Imp gal