Yamaha TT-R90(R) Owner's Service Manual page 58

Brake:
Front brake type
Operation
Rear brake type
Operation
Suspension:
Front suspension
Rear suspension
Shock absorber:
Front shock absorber
Rear shock absorber
Wheel travel:
Front wheel travel
Rear wheel travel
Electrical:
Ignition system
GENERAL SPECIFICATIONS
Drum brake
Right hand operation
Drum brake
Right foot operation
Telescopic fork
Swingarm (monocross suspension)
Coil spring/oil damper
Coil spring/gas, oil damper
110 mm (4.33 in)
93 mm (3.66 in)
CDI magneto
2 - 3
SPEC