| MODEL | DUCATI 650SL PANTAH 1983 - 1986 |
| Year | 1983 - 1986 |
| Engine Type | 90 degree V-twin (L-twin), 4-stroke, SOHC, desmodromic, 2 valves per cylinder, belt-driven camshafts |
| Displacement / Capacity | 649 cc / 39.6 cu in |
| Bore X Stroke | 82 x 61.5 mm |
| Compression Ratio | 10.0:1 |
| Cooling System | Air cooled |
| Max Power | 46.3 kW / 63 hp @ 8500 rpm |
| Max Torque | 45 Nm / 4.6 kgf-m / 33.2 ft-lb @ 6000 rpm |
| Ignition | Bosch BTZ electronic |
| Induction | Dell'Orto PHF36A |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 speed |
| Clutch | Wet, multi-plate |
| Final Drive | Chain, 2.733:1 (15/41) |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 35 mm Marzocchi fork |
| Rear Suspension | Marzocchi dual shock absorbers with 3-way adjustable springs |
| Front Brakes | 2 x 260 mm discs, 2 piston calipers |
| Rear Brakes | Single 260 mm disc, 1 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2150 mm / 84.6 in |
| Overall Width | 700 mm / 27.6 in |
| Overall Height | 1280 mm / 50.4 in |
| Seat Height | 770 mm / 30.3 in |
| Wheelbase | 1450 mm / 57.1 in |
| Ground Clearance | — |
| Dry Weight | 180 kg / 397 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 100/90-18 |
| Rear Tyre | 110/90-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 18 Litres / 4.8 US gal / 4.0 Imp gal |
| Fuel Consumption | — |
| Top Speed | — |
The 650SL was the final and most desirable Pantah, with bore and stroke enlarged to 82 x 61.5 mm (shared with the 750 racer) for the midrange torque earlier versions lacked. It looked much like the 600 but wore red and yellow F2-racer colours and different instruments. Like the 600, its fuel cap could let water into the tank.
