| MODEL | KAWASAKI KR-1S 1991 |
| Year | 1991 |
| Engine Type | Two stroke, parallel twin cylinder, KIPS electronic variable exhaust valve |
| Displacement / Capacity | 249 cc / 15.2 cu in |
| Bore X Stroke | 56.0 x 50.6 mm |
| Compression Ratio | 7.4:1 |
| Cooling System | Liquid cooled |
| Max Power | 59.1 hp / 43.2 kW @ 10500 rpm |
| Max Torque | 40.2 Nm / 4.1 kgf-m @ 10500 rpm |
| Ignition | Capacitor discharge |
| Induction | 2x 28mm Keihin PWK carburetor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Tubular diamond, aluminium extruded E-Box frame |
| Front Suspension | 41mm stanchions, air assisted telescopic fork with unstepped preload adjustment |
| Rear Suspension | Bottom Link Uni-Trak with air adjustable gas shock, unstepped preload, four-way rebound damping |
| Front Brakes | 2x discs, 4 piston calipers |
| Rear Brakes | Single disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2,015 mm / 79.3 in |
| Overall Width | 695 mm / 27.4 in |
| Overall Height | 1,365 mm / 53.7 in |
| Seat Height | 755 mm / 29.7 in |
| Wheelbase | 1365 mm / 53.7 in |
| Ground Clearance | — |
| Dry Weight | 131 kg / 288.8 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 100/70 VR17 |
| Rear Tyre | 130/60 VR18 |
| FUEL SYSTEM | |
| Fuel Capacity | 16.0 Litres / 4.2 gal |
| Fuel Consumption | 36 mpg (average) |
| Top Speed | 135.3 mph / 217.7 km/h |
The 1991 KR-1S continues the KIPS-equipped two-stroke twin with the aluminium E-Box frame and 59.1 hp output of the 1990 model. The page gives the same chassis dimensions, 131 kg dry weight and 135.3 mph top speed. It is listed as a separate year but describes the same specification as the 1990 and 1992 bikes.
