YAMAHA YZ250X | BMW R 12 |
---|
engine specs | |
Type | |
---|---|
Liquid-cooled 2-stroke, reed-valve inducted | Water-cooled, 2-cylinder, four-stroke boxer engine with four valves per cylinder operated by cam followers and two overhead camshafts per cylinder |
Displacement | |
249 cm3 | 1170 cm3 |
Bore X Stroke | |
2.6x2.8 in OR 66 mm | 4.0x2.9 in OR 102 mm |
Compression Ratio | |
7.9:1 | - |
Horsepower | |
- | 95/6500 KW(hp)/RPM |
Torque | |
- | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
Fuel System | |
Injection. Yamaha Fuel Injection (YFI), Keihin 44mm | - |
transmission specs | |
Gearbox | |
---|---|
5-Speed constant mesh | 6-speed |
Clutch | |
Wet multiplate | - |
Final Drive | |
Chain | Shaft |
chassis specs | |
Frame | |
---|---|
Bilateral aluminium beam | Tubular space frame in steel, engine self-supporting |
Front Suspension | |
KYB Speed-Sensitive System inverted fork, fully adjustable, 11.8-in travel | USD telescopic forks, 45 mm |
Rear Suspension | |
KYB Monoshock, fully adjustable, 12.4-in travel | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
Front Brake | |
Single hydraulic disc 250mm | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
Rear Brake | |
Single hydraulic disc 245mm | Single disc brake, 265 mm, 2-piston floating caliper |
dimension specs | |
Overall Length | |
---|---|
86 in OR 2184 mm | 86.6 in OR 2200 mm |
Overall Width | |
32.5 in OR 826 mm | 32.7 in OR 831 mm |
Seat Height | |
38.2 in OR 970 mm | 29.7 in OR 754 mm |
Ground Clearance | |
14.2 in OR 361 mm | - |
Weight | |
229 lbs OR 104 kg | 500 lbs OR 227 kg |
Fuel Capacity | |
1.6 gallons OR 6.1 L | 3.7 gallons OR 14.0 L |
Wheelbase | |
58.5 in OR 1486 mm | 59.8 in OR 1519 mm |
tyres specs | |
Front | |
---|---|
90/90-21 | 100/90-19 |
Rear | |
110/100-18 | 150/80-16 |