Yamaha WR250R Owner's Manual page 92

SPECIFICATIONS
Gear ratio:
1st:
2.642 (37/14)
2nd:
1
1.813 (29/16)
3rd:
1.318 (29/22)
2
4th:
1.040 (26/25)
5th:
3
0.889 (24/27)
6th:
4
0.786 (22/28)
Chassis:
Frame type:
5
Semi double cradle
Caster angle:
26.67 
6
Trail:
111 mm (4.4 in)
Front tire:
7
Type:
With tube
8 Size:
80/100-21M/C 51P
Manufacturer/model:
9
BRIDGESTONE/TW-301 F
Rear tire:
Type:
With tube
Size:
120/80-18M/C 62P
Manufacturer/model:
BRIDGESTONE/TW-302 F
Loading:
Maximum load:
185 kg (408 lb)
* (Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
2
125 kPa (1.25 kgf/cm , 18 psi)
Rear:
2
175 kPa (1.75 kgf/cm , 25 psi)
Loading condition:
90–185 kg (198–408 lb)
Front:
2
150 kPa (1.50 kgf/cm , 22 psi)
Rear:
2
200 kPa (2.00 kgf/cm , 29 psi)
Front wheel:
Wheel type:
Spoke wheel
Rim size:
21x1.60
Rear wheel:
Wheel type:
Spoke wheel
Rim size:
18x2.15
Front brake:
Type:
Single disc brake
Operation:
Right hand operation
8-2
Recommended fluid:
DOT 4
Rear brake:
Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
Front suspension:
Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
270.0 mm (10.63 in)
Rear suspension:
Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
270.0 mm (10.63 in)
Electrical system:
Ignition system:
TCI
Charging system:
AC magneto
Battery:
Model:
YTZ7S
Voltage, capacity:
12 V, 6.0 Ah