Yamaha YFM90RYXJ Owner's Manual page 52

5
1. Tire tread depth
Tire information
This ATV is equipped with tubeless tires and tire
air valves. After extensive tests, only the tires list-
ed below are approved for this model by Yamaha.
Front:
Manufacturer/model:
DURO/DI2017
Size:
AT18 x 7-8
Type:
Tubeless
Rear:
Manufacturer/model:
DURO/DI2016
Size:
AT18 x 9-8
Type:
Tubeless
Aftermarket tires and rims
The tires and rims that came with your ATV were
designed to match the performance capabilities
and to provide the best combination of handling,
braking, and comfort. Other tires, rims, sizes, and
combinations may not be appropriate.
5-5