| TECHNICAL SPECIFICATION |
|---|
| Model ID |
|---|
| Manufacturer (Make) | Yamaha |
| Model Name | TT-R 90 |
| Year | 2002 |
| Category(class) | Motocross / Dirtbike |
| Engine |
|---|
| Engine Capacity (Displacement) | 89 ccm (5.43 cubic inches) |
| Engine Type | 1 cylinder |
| Bore x Stroke | Ø47.0 mm x 51.8 mm (Ø1.85 inches x 2.04 inches) |
| Bore/Stroke Ratio | 0.91 |
| Stroke | 4 |
| Timing System | SOHC |
| Cooling System | Liquid |
| Powertrain |
|---|
| Chassis/Suspension/Brakes |
|---|
| Front Suspension Travel | 110 mm (4.33 inches) |
| Rear Suspension Travel | 95 mm (3.74 inches) |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| Dimensions |
|---|
| Overall Length | 1525 mm (60.04 inches) |
| Overall Width | 605 mm (23.82 inches) |
| Seat Height | 625 mm (24.61 inches) |
| Wheelbase | 1040 mm (40.94 inches) |
| Ground Clearance | 157 mm (6.18 inches) |
| Dry Weight | 60 kg (132 lb) |
| Performance |
|---|
| Max Power | 5.60 HP (4.1 kW) at 7000 RPM |
| Max Torque | 6.10 Nm (4.49 ft*lbs) at 4000 RPM |
| Power/Weight Ratio | 0.08 Hp/Kg |
| Top Speed | - |
| Acceleration (dart, speedup) time | |
| 0-100 km/h | - |
| 0-60 mph | - |
| 1/4 mile | - |
| 60 to 140 km/h, highest gear | - |
