The KTM 250 EX/C Enduro from 1997-98 is a two-stroke, single cylinder motorcycle with 249cc capacity and liquid cooling. It requires two-stroke oil at a mix of 1:50-1:60 for lubrication and features a Kokusan 2K-1 CDI induction and NGK BR 8 ECM spark plug. The motorcycle has a maximum power of 12.7 kW / 17 hp at 7400 rpm and a wet, multiplate, hydraulically operated clutch. It has a 5-speed transmission with gear ratios of 1st 15:29, 2nd 18:26, 3rd 19:22, 4th 21:20, and 5th 23:18, and a chain final drive ratio of 14:50. The motorcycle has a central chrome-moly-steel frame, and front and rear suspension by WP. The front suspension is a WP Extreme 50mm inverted fork, and the rear suspension is a WP Progressive Damping System shock absorber with an aluminum swingarm. The bike has a single 260mm disc, floating caliper front brake, and a single 220mm disc, floating caliper rear brake. The front tire is a 90/90-21″ 54R and the rear tire is a140/80-18″ 70R. The motorcycle has a 63.5o steering head angle, a wheelbase of 1481mm or 58.3 inches, a ground clearance of 385mm or 15 inches, and a seat height of 925mm or 36.4 inches. The dry weight of the motorcycle is 103.7 kg or 229 lbs, and it has a fuel capacity of 9.5 L or 12 L, which is equivalent to 2.5 US gal or 3.2 US gal / 2.1 Imp gal or 2.6 Imp gal.
Technical specifications:
Make Model: KTM 250 EX/C Enduro
| Year | 1997 – 98 |
|---|---|
| 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 |
