| MODEL | BUELL S2 THUNDERBOLT 1994 |
| Year | 1994 |
| Engine Type | 45-degree V-twin, four-stroke, pushrod OHV, hydraulic self-adjusting lifters, 2 valves per cylinder |
| Displacement / Capacity | 1203 cc / 73.4 cu in |
| Bore X Stroke | 88.8 x 96.8 mm |
| Compression Ratio | 10.0:1 |
| Cooling System | Air |
| Max Power | 56.7 kW / 76 hp @ 5200 rpm |
| Max Torque | 90 Nm / 66.4 lb-ft @ 5500 rpm |
| Ignition | — |
| Induction | Two 40 mm Keihin carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | — |
| Final Drive | Kevlar belt |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 40 mm Showa fork, adjustable compression and rebound damping, 120 mm / 4.7 in travel |
| Rear Suspension | Single Showa shock, spring preload, compression and preload damping, 116 mm / 4.6 in travel |
| Front Brakes | Single 340 mm disc, 6-piston caliper |
| Rear Brakes | Single 230 mm disc, 2-piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 200 kg / 441 lb |
| Wet Weight | 218 kg / 481 lb |
| WHEEL SPECS | |
| Front Tyre | 120/70 ZR17 |
| Rear Tyre | 170/60 ZR17 |
| FUEL SYSTEM | |
| Fuel Capacity | 20.4 Litres / 5.4 US gal |
| Fuel Consumption | 5.5 L/100 km / 43 US mpg |
| Top Speed | 233.4 km/h / 145 mph |
The Thunderbolt was the first Buell developed after Harley-Davidson became a near-half owner, with Harley supplying the engine and Buell the chassis. The engine and frame are left exposed, and it has a big six-piston front brake and an inverted fork. It sits between sport and relaxed riding positions.
