Yamaha TT-R 90 - 2002 Specifications and Reviews
The 2002 Yamaha TT-R 90 is an entry-level motocross bike designed for young and beginner riders learning off-road skills. Its compact 89cc single-cylinder four-stroke engine delivers modest power with excellent control, while the responsive suspension geometry and drum brakes make it forgiving and manageable. Known for reliability and durability, the TT-R 90 remains a popular choice for introducing new riders to dirt biking.
2002
General information | |
| Category | Cross / motocross |
| Year | 2002 |
| Model | Yamaha TT-R 90 |
Engine and Transmission Specifications | |
| Cooling system | Liquid |
| Fuel control | SOHC |
| Bore x stroke | 47.0 x 51.8 mm (1.9 x 2.0 inches) |
| Compression | 8.5:1 |
| Torque | 6.10 Nm (0.6 kgf-m or 4.5 ft.lbs) @ 4000 |
| Power | 5.60 |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 89.00 ccm (5.43 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Expanding brake |
| Front brakes | Expanding brake |
| Rear suspension travel | 95 mm (3.7 inches) |
| Front suspension travel | 110 mm (4.3 inches) |
Physical measures and capacities | |
| Wheelbase | 1,040 mm (40.9 inches) |
| Ground clearance | 157 mm (6.2 inches) |
| Overall width | 605 mm (23.8 inches) |
| Overall length | 1,525 mm (60.0 inches) |
| Overall height | 865 mm (34.1 inches) |
| Seat height | 625 mm (24.6 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.0933 HP/kg |
| Dry weight | 60.0 kg (132.3 pounds) |






































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