| AJP PR4 EXTREME | BMW R 12 |
|---|
| engine specs | |
| Type | |
|---|---|
| Single cylinder, 4-stroke, Air cooled with remote oil radiator | Water-cooled, 2-cylinder, four-stroke boxer engine with four valves per cylinder operated by cam followers and two overhead camshafts per cylinder |
| Displacement | |
| 233 cm3 | 1170 cm3 |
| Bore X Stroke | |
| - | 4.0x2.9 in OR 102 mm |
| Horsepower | |
| 20/8000 KW(hp)/RPM | 95/6500 KW(hp)/RPM |
| Torque | |
| 13/7000 lb-ft/RPM OR 18/7000 Nm/RPM | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
| Fuel System | |
| Carburetor: Keihin/Deni PZ30 w/accelerator pump / Twin Air high-mounted filter | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 5-Speed | 6-speed |
| Clutch | |
| Wet Multi-disc | - |
| Final Drive | |
| Chain | Shaft |
| chassis specs | |
| Frame | |
|---|---|
| Hybrid aluminium and steel | Tubular space frame in steel, engine self-supporting |
| Front Suspension | |
| Sachs 48mm, TiNi coating, 11 inches travel, compression and rebound adjustable | USD telescopic forks, 45 mm |
| Rear Suspension | |
| Sachs remote reservoir, progressive linkage, 11.8 inches travel (stock link), compression, rebound, & preload adjustable | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
| Front Brake | |
| BrakTec hydraulics disc 260 mm | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
| Rear Brake | |
| BrakTec hydraulics disc 220 mm | Single disc brake, 265 mm, 2-piston floating caliper |
| dimension specs | |
| Overall Length | |
|---|---|
| - | 86.6 in OR 2200 mm |
| Overall Width | |
| - | 32.7 in OR 831 mm |
| Seat Height | |
| 35.2 in OR 894 mm | 29.7 in OR 754 mm |
| Ground Clearance | |
| 13.2 in OR 335 mm | - |
| Weight | |
| 247 lbs OR 112 kg | 500 lbs OR 227 kg |
| Fuel Capacity | |
| 1.8 gallons OR 6.8 L | 3.7 gallons OR 14.0 L |
| Wheelbase | |
| 54.9 in OR 1394 mm | 59.8 in OR 1519 mm |
| tyres specs | |
| Front | |
|---|---|
| 90/90 – 21″ | 100/90-19 |
| Rear | |
| 120/80 – 18″ | 150/80-16 |
