| BUELL XB12R Firebolt | BMW R 12 |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, four-stroke, 45-degree V-Twin, pushrod OHV, 2 valves per cylinder | Water-cooled, 2-cylinder, four-stroke boxer engine with four valves per cylinder operated by cam followers and two overhead camshafts per cylinder |
| Displacement | |
| 1203 cm3 | 1170 cm3 |
| Bore X Stroke | |
| 3.5x3.8 in OR 89 mm | 4.0x2.9 in OR 102 mm |
| Compression Ratio | |
| 10.0:1 | - |
| Horsepower | |
| 103/6800 KW(hp)/RPM | 95/6500 KW(hp)/RPM |
| Torque | |
| 84/6000 lb-ft/RPM OR 114/6000 Nm/RPM | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
| Fuel System | |
| EFI | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 5-speed, manual | 6-speed |
| Clutch | |
| wet multi-disc, manual | - |
| Final Drive | |
| belt | Shaft |
| chassis specs | |
| Frame | |
|---|---|
| hollowed aluminium with Uniplanar Powertrain vibration isolation system, doubles as fuel tank | Tubular space frame in steel, engine self-supporting |
| Front Suspension | |
| 43mm Showa fully-adjustable upside-down fork | USD telescopic forks, 45 mm |
| Rear Suspension | |
| Showa fully-adjustable mono-shock | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
| Front Brake | |
| single 375mm, 6-piston caliper, ZTL-type | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
| Rear Brake | |
| single 240mm disc, 1-piston caliper | Single disc brake, 265 mm, 2-piston floating caliper |
| dimension specs | |
| Overall Length | |
|---|---|
| 75.7 in OR 1923 mm | 86.6 in OR 2200 mm |
| Overall Width | |
| 30.2 in OR 767 mm | 32.7 in OR 831 mm |
| Seat Height | |
| 30.5 in OR 775 mm | 29.7 in OR 754 mm |
| Ground Clearance | |
| 5 in OR 127 mm | - |
| Weight | |
| 395 lbs OR 179 kg | 500 lbs OR 227 kg |
| Fuel Capacity | |
| 3.7 gallons OR 14.0 L | 3.7 gallons OR 14.0 L |
| Wheelbase | |
| 52 in OR 1321 mm | 59.8 in OR 1519 mm |
| tyres specs | |
| Front | |
|---|---|
| 120/70 ZR17 | 100/90-19 |
| Rear | |
| 180/55 ZR17 | 150/80-16 |
