Yamaha BWS 100 1999 Owner's Manual page 58

Transmission
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Transmission type
Operation
Chassis
Frame type
Caster angle
Trail
Tire
Front
Size
Manufacuturer/model
Rear
SIZE
Manufacuturer/model
Helical gear
3.133
Spur gear
3.308
V-belt automatic
Centrifugal automatic type
Steel tube underbone
26°
86 mm
Tubeless
120/90-10
CHENG SHIN/56J
130/90-10
CHENG SHIN/59J
8-2
SPECIFICATIONS
Manufacturer/model
Front
Rear
Maximum load*
Air pressure
Up to 90 kg load*
Front
Rear
90 kg load ~ maximum load*
Front
Rear
*Load is total weight of cargo, rider and accessories.
CHENG SHIN / 56J
CHENG SHIN / 59J
160 kg
200 kpa(2.0 kg / cm 2 ,2.0 bar)
2
200 kpa(2.0 kg / cm ,2.0 bar)
2
200 kpa(2.0 kg / cm ,2.0 bar)
200 kpa(2.0 kg / cm 2 ,2.0 bar)