| APRILIA RS 50 | BMW R 12 |
|---|
| engine specs | |
| Type | |
|---|---|
| Single Cylinder Two-stroke | Water-cooled, 2-cylinder, four-stroke boxer engine with four valves per cylinder operated by cam followers and two overhead camshafts per cylinder |
| Displacement | |
| 49.9 cm3 | 1170 cm3 |
| Bore X Stroke | |
| 1.56x1.57 in OR 40 mm | 4.0x2.9 in OR 102 mm |
| Compression Ratio | |
| 12.0.5:1 | - |
| Horsepower | |
| - | 95/6500 KW(hp)/RPM |
| Torque | |
| - | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
| Fuel System | |
| Carburettor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 6 Speed | 6-speed |
| Clutch | |
| Multiple Discs In Oil Bath | - |
| Primary Drive | |
| Gears. Ratio: 21/78 | - |
| Final Drive | |
| Chain | Shaft |
| chassis specs | |
| Frame | |
|---|---|
| Sloping Twin-spar In Cast Aluminium With Thin Walled Structural Shell And Cross Rib Reinforcement | Tubular space frame in steel, engine self-supporting |
| Front Suspension | |
| Aprilia Ø 35 Mm | USD telescopic forks, 45 mm |
| Rear Suspension | |
| Double Member Swing-arm | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
| Front Brake | |
| Stainless Steel Disk, Ø 280 Mm | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
| Rear Brake | |
| Stainless Steel Disk, Ø 220 Mm | Single disc brake, 265 mm, 2-piston floating caliper |
| dimension specs | |
| Overall Length | |
|---|---|
| 77.3 in OR 1963 mm | 86.6 in OR 2200 mm |
| Overall Width | |
| 28.3 in OR 719 mm | 32.7 in OR 831 mm |
| Seat Height | |
| 31.8 in OR 808 mm | 29.7 in OR 754 mm |
| Weight | |
| 196.2 lbs OR 89 kg | 500 lbs OR 227 kg |
| Fuel Capacity | |
| 3.22 gallons OR 12.2 L | 3.7 gallons OR 14.0 L |
| Wheelbase | |
| 51.5 in OR 1308 mm | 59.8 in OR 1519 mm |
| tyres specs | |
| Front | |
|---|---|
| 110/80 ZR 17 | 100/90-19 |
| Rear | |
| 130/70 ZR 17 | 150/80-16 |
