| BMW R 39 | INDIAN Chief Dark Horse |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, four-stroke, single vertical cylinder, OHV | Air-cooled Thunderstroke 116 |
| Displacement | |
| 247 cm3 | 1890 cm3 |
| Bore X Stroke | |
| 2.67x2.67 in OR 68 mm | 4.1x4.4 in OR 104 mm |
| Compression Ratio | |
| 6:1 | 11.0:1 |
| Horsepower | |
| 6/4000 KW(hp)/RPM | - |
| Torque | |
| - | 120/2900 lb-ft/RPM OR 163/2900 Nm/RPM |
| Fuel System | |
| 1x20mm BMW Spezial | Electronic Fuel Injection |
| transmission specs | |
| Gearbox | |
|---|---|
| 3 speed, manual | 6-speed |
| Clutch | |
| dry, single plate | Wet, multi-plate |
| Final Drive | |
| shaft | - |
| chassis specs | |
| Frame | |
|---|---|
| steel | - |
| Front Suspension | |
| plate spring, 4 laminae | Telescopic Fork |
| Rear Suspension | |
| hard-tail, sprung seat | Dual Shocks w/adjustable preload |
| Front Brake | |
| 150mm drum | Single / 300mm Semi-Floating Rotor / 4 Piston Caliper |
| Rear Brake | |
| external shoe brake at the gearing (on cardan shaft) | Single / 300mm Floating Rotor / 2 Piston Caliper |
| dimension specs | |
| Overall Length | |
|---|---|
| 80 in OR 2032 mm | 90 in OR 2286 mm |
| Overall Width | |
| 31 in OR 787 mm | 36.3 in OR 922 mm |
| Seat Height | |
| - | 26.1 in OR 663 mm |
| Ground Clearance | |
| - | 4.9 in OR 124 mm |
| Weight | |
| 242 lbs OR 110 kg | 549 lbs OR 249 kg |
| Fuel Capacity | |
| 2.64 gallons OR 10.0 L | 4 gallons OR 15.1 L |
| Wheelbase | |
| - | 64 in OR 1626 mm |
| tyres specs | |
| Front | |
|---|---|
| 27 x 3.5 | Pirelli Night Dragon 130/60B19 61H |
| Rear | |
| 27 x 3.5 | Pirelli Night Dragon 180/65 B16 81H |
