YAMAHA TT-R250 | BMW R 12 |
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engine specs | |
Type | |
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air-cooled, 4-valve, DOHC, 4-stroke single | 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 | |
2.9x2.3 in OR 74 mm | 4.0x2.9 in OR 102 mm |
Compression Ratio | |
10.2:1 | - |
Horsepower | |
- | 95/6500 KW(hp)/RPM |
Torque | |
15/6500 lb-ft/RPM OR 20/6500 Nm/RPM | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
Fuel System | |
30mm Teikei Y30P carburetor | - |
transmission specs | |
Gearbox | |
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6 Speed, manual | 6-speed |
Clutch | |
Wet multi-disc, manual | - |
Final Drive | |
Chain | Shaft |
chassis specs | |
Frame | |
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Steel | Tubular space frame in steel, engine self-supporting |
Front Suspension | |
Telescopic 43mm fork | USD telescopic forks, 45 mm |
Rear Suspension | |
Adjustable link monocross | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
Front Brake | |
245mm disc | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
Rear Brake | |
220mm disc | Single disc brake, 265 mm, 2-piston floating caliper |
dimension specs | |
Overall Length | |
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82.5 in OR 2096 mm | 86.6 in OR 2200 mm |
Overall Width | |
32.9 in OR 836 mm | 32.7 in OR 831 mm |
Seat Height | |
36 in OR 914 mm | 29.7 in OR 754 mm |
Weight | |
249 lbs OR 113 kg | 500 lbs OR 227 kg |
Fuel Capacity | |
2.6 gallons OR 9.8 L | 3.7 gallons OR 14.0 L |
Wheelbase | |
55.3 in OR 1405 mm | 59.8 in OR 1519 mm |
tyres specs | |
Front | |
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80/100-21 | 100/90-19 |
Rear | |
100/100-18 | 150/80-16 |