| MODEL | BUELL RR 1200 BATTLETWIN 1988 |
| Year | 1988 |
| Engine Type | 45 deg V-Twin, four stroke, pushrod actuated overhead valve, hydraulic self-adjusting lifters, 2 valves per cylinder |
| Displacement / Capacity | 1198 cc / 73.1 cu in |
| Bore X Stroke | 88.9 x 98.8 mm |
| Compression Ratio | 9.0:1 |
| Cooling System | Air cooled |
| Max Power | 44.7 kW / 60 hp @ 5000 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | 40 mm Keihin carburetor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic forks |
| Rear Suspension | Single shock |
| Front Brakes | 2 x discs |
| Rear Brakes | Single disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | 21 L / 5.5 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The RR 1200 swapped the XR1000 engine of the earlier RR for the 1200 cc Evolution Sportster unit, keeping the streamlined full bodywork, rubber-mounted engine and Buell-designed four-piston front brakes. The monoshock sat under the engine as on the RR1000.
