Honda FourTrax Rancher TRX420FE1 2019 Owner's Manual page 186

Tires
Tire Replacement
Refer to Safety Precautions on page 101.
The tires that came on your ATV were designed to match the
performance capabilities of your ATV and provide the best
combination of handling, braking, and comfort.
It is best to replace all four tires, however if that is not possible, you
must replace the tires in pairs (front or rear) with tires of the same
size and type as the originals. Never replace just one tire.
WARNING
Installing improper tires on your ATV can
affect handling and stability. This can cause a
crash in which you can be seriously hurt or
killed.
Always use the size and type of tires
recommended in this owner's manual.
The recommended tires for your ATV are:
front
rear
When you replace a tire, remember:
Have the tire replaced by your dealer if possible.
If you have a tire professionally replaced at a non-Honda facility, we
recommended that you have the work checked by your dealer.
176 Servicing Your Honda
WARNING
3
AT24 × 8-1211
AT24 × 10-1111
MAXXIS M977
MAXXIS M978