Yamaha YFM45KDXK Owner's Manual page 149

Secondary reduction ratio:
7.944 (39/24 x 24/18 x 33/9)
Final drive:
Shaft
Clutch type:
Wet, centrifugal, shoe
Transmission type:
CVT automatic with reverse
Gear ratio:
Transmission ratio:
2.550–0.750 : 1
Reverse gear:
1.706 (29/17)
Low range:
2.813 (45/16)
High range:
1.652 (38/23)
Front tire:
Size:
AT25 x 8-12
Manufacturer/model:
CHENG SHIN/CU905
Rear tire:
Size:
AT25 x 10-12
Manufacturer/model:
CHENG SHIN/CU906
Tire air pressure (measured on cold tires):
Vehicle load:
0.0–240.0 kg (0–530 lb)
Recommended:
Front:
35.0 kPa (0.350 kgf/cm², 5.0 psi)
Rear:
30.0 kPa (0.300 kgf/cm², 4.4 psi)
Minimum:
Front:
32.0 kPa (0.320 kgf/cm², 4.6 psi)
Rear:
27.0 kPa (0.270 kgf/cm², 4.0 psi)
Front wheel:
Rim size:
12 x 6.0AT
Rear wheel:
Rim size:
12 x 7.5AT
Front brake:
Type:
Hydraulic disc brake
Rear brake:
Type:
Mechanical wet multiple disc brake
Brake fluid:
Specified brake fluid:
DOT 4
Front suspension:
Type:
Double wishbone
Spring:
Coil spring
10-3
10