| YAMAHA YFZ450 | BMW R 12 |
|---|
| engine specs | |
| Type | |
|---|---|
| liquid-cooled w/fan, 4-stroke DOHC, 5 valves | Water-cooled, 2-cylinder, four-stroke boxer engine with four valves per cylinder operated by cam followers and two overhead camshafts per cylinder |
| Displacement | |
| 449 cm3 | 1170 cm3 |
| Bore X Stroke | |
| 3.7x2.5 in OR 94 mm | 4.0x2.9 in OR 102 mm |
| Compression Ratio | |
| 11.4:1 | - |
| Horsepower | |
| - | 95/6500 KW(hp)/RPM |
| Torque | |
| - | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
| Fuel System | |
| Mikuni 42mm BSR | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 5 speed | 6-speed |
| Clutch | |
| Wet, multiplate | - |
| Final Drive | |
| sealed O-ring chain, eccentric adjustment | Shaft |
| chassis specs | |
| Frame | |
|---|---|
| Aluminium, steel | Tubular space frame in steel, engine self-supporting |
| Front Suspension | |
| Independent double wishbone, threaded preload adjustment, 9.1-in travel | USD telescopic forks, 45 mm |
| Rear Suspension | |
| Cast aluminum swing arm, threaded preload adjustment, 10.6-in travel | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
| Front Brake | |
| 127mm Dual hydraulic disc | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
| Rear Brake | |
| 173mm Hydraulic disc | Single disc brake, 265 mm, 2-piston floating caliper |
| dimension specs | |
| Overall Length | |
|---|---|
| 72.4 in OR 1839 mm | 86.6 in OR 2200 mm |
| Overall Width | |
| 46.1 in OR 1171 mm | 32.7 in OR 831 mm |
| Seat Height | |
| 31.9 in OR 810 mm | 29.7 in OR 754 mm |
| Ground Clearance | |
| 4.5 in OR 114 mm | - |
| Weight | |
| 386 lbs OR 175 kg | 500 lbs OR 227 kg |
| Fuel Capacity | |
| 2.6 gallons OR 9.8 L | 3.7 gallons OR 14.0 L |
| Wheelbase | |
| 50.4 in OR 1280 mm | 59.8 in OR 1519 mm |
| tyres specs | |
| Front | |
|---|---|
| Dunlop AT21 x 7-10 | 100/90-19 |
| Rear | |
| Dunlop AT20 x 10R9 | 150/80-16 |
