Honda TRX420TM Owner's Manual page 166

Tyres
Tyre Replacement
Refer to Saf ety Precautions
The tyres 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 tyres, however if that is not possible, you
must replace the tyres in pairs (front or rear) with tyres of the same size
and type as the originals. Never replace just one tyre.
Installing improper tyres 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 tyres
recommended in this owner's manual.
The recommended tyres for your ATV are:
front AT24
rear AT24
When you replace a tyre, remember:
Have the tyre replaced by your Honda dealer if possible.
If you have a tyre professionally replaced at a non-Honda facility, we
recommended that you have the work checked by your Honda dealer.
Servicing Your Honda
156
on page 89
8-12 MAXXIS M977
10-11 MAXXIS M978
.