26 October. Sunday 2025
General information | |
| Category | Minibike, cross |
| Year | 2004 |
| Model | Yamaha TT-R90 E |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Chain |
| 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 |
| Power | 5.49 |
| Stroke | 4 |
| Engine type | Single cylinder |
| Capacity: | 89.00 ccm (5.43 cubic inches) |
Physical measures and capacities | |
| Wheelbase | 1,040 mm (40.9 inches) |
| Ground clearance | 172 mm (6.8 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. |
| Dry weight | 60.0 kg (132.3 pounds) |
| | |
Yamaha TT-R90 E dimensions and frame | |
| Rear brakes diameter | 110 mm (4.3 inches) |
| Rear brakes | Expanding brake (drum brake) |
| Front brakes diameter | 95 mm (3.7 inches) |
| Front brakes | Expanding brake (drum brake) |
| Rear suspension travel | 95 mm (3.7 inches) |
| Rear suspension | Swinging arm (monocross) |
| Front suspension travel | 110 mm (4.3 inches) |
| Front suspension | Telescopic fork |
Speed and acceleration | |
| Power/weight ratio | 0.0915 HP/kg |
Other specs | |
| Color options | Blue |
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