| MODEL | BUELL S1 LIGHTNING 1997 |
| Year | 1997 |
| Engine Type | V-twin, four-stroke, 2 valves per cylinder |
| Displacement / Capacity | 1203 cc / 73.4 cu in |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | Air cooled |
| Max Power | 62.8 kW / 86 hp |
| Max Torque | 107 Nm / 78.9 ft-lbs |
| Ignition | — |
| Induction | — |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | — |
| Final Drive | Belt |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | Single disc |
| Rear Brakes | Single disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 749 mm / 29.5 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 193 kg / 425.5 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | 200 km/h / 124.3 mph |
The S1 Lightning was the naked, sport-oriented Buell built around the air-cooled Sportster-derived 1203 cc twin with belt final drive. It was a stripped, lighter alternative to the faired S2 and S3 Thunderbolt models and sold in the middle of the S1 production run.
