| YAMAHA TT-R90 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| Air-cooled, SOHC,4-stroke single | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 89 cm3 | - |
| Bore X Stroke | |
| 1.9x2.0 in OR 48 mm | - |
| Compression Ratio | |
| 8.5:1 | - |
| Horsepower | |
| - | 48/- KW(hp)/RPM |
| Torque | |
| 4/4000 lb-ft/RPM OR 5/4000 Nm/RPM | - |
| Fuel System | |
| Mikuni VM16SH carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 3 Speed, semi-automatic | - |
| Clutch | |
| Automatic | - |
| Final Drive | |
| Chain | - |
| chassis specs | |
| Frame | |
|---|---|
| Steel | Aluminium frame |
| Front Suspension | |
| Telescopic 26mm fork | - |
| Rear Suspension | |
| Single monocross shock, adjustable | - |
| Front Brake | |
| drum | - |
| Rear Brake | |
| drum | - |
| dimension specs | |
| Overall Length | |
|---|---|
| 60 in OR 1524 mm | - |
| Overall Width | |
| 23.8 in OR 605 mm | - |
| Seat Height | |
| 24.6 in OR 625 mm | - |
| Weight | |
| 134 lbs OR 61 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 1.1 gallons OR 4.2 L | - |
| Wheelbase | |
| 40.9 in OR 1039 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 2.50-14 | - |
| Rear | |
| 3.00-12 | - |
