| MODEL | BMW R 68 SDT SPECIAL 1952 - 1954 |
| Year | 1952 - 1954 |
| Engine Type | Four stroke, two cylinder horizontally opposed boxer, pushrod operated OHV, 2 valves per cylinder |
| Displacement / Capacity | 594 cc / 36.2 cu in |
| Bore X Stroke | 72 x 73 mm |
| Compression Ratio | 8.0:1 |
| Cooling System | Air cooled |
| Max Power | 26.1 kW / 35 hp @ 7000 rpm |
| Max Torque | — |
| Ignition | Magneto |
| Induction | 2 x Bing 26 mm carburettors (1/26/9 - 1/26/10) |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4 Speed |
| Clutch | Single plate, dry |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | Double loop tubular steel |
| Front Suspension | Telescopic fork with hydraulic damping |
| Rear Suspension | Plunger with coil springs and rubber stops |
| Front Brakes | 200 mm drum, duplex |
| Rear Brakes | 200 mm drum, simplex |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 190 kg / 419 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.50-19 |
| Rear Tyre | 3.50-19 |
| FUEL SYSTEM | |
| Fuel Capacity | 17 Litres / 4.5 US gal |
| Fuel Consumption | — |
| Top Speed | 160 km/h / 100 mph |
The off-road version of the R 68, modelled on the works bikes BMW entered in the 1952 International Six Days Trial in Austria. In place of the road bike's twin low silencers it carried a high-level two-into-one exhaust over the right cylinder, with wider bars, a raised number plate and other trial fittings. Privateers also used R 68s in the event, including a British rider who finished the 1954 ISDT in Wales on an over-the-counter machine.
