Overinflation.
Completer wear of tread surface -(creating an unsafe tire ! )
60% tread wear.
There's several types of tire wear, I'll list a few of the most common: Low tread inside outside with good tread in the center = Too low air pressure. Low tread in the center with good tread on outer edges = Too high air pressure. Heavy wear on inside of both tires = camber and/or toe adjustment out. Heavy wear on outside of both tires = camber and/or tow adjustment out. Feathering or choppy wear = poor shocks and/or toe out of adjustment and/or unbalanced tire/s.
Many tires have tread wear indicator bars molded into the tread. When the tread is worn down to where you can see a solid bar of rubber across the width of the tread, it is time to replace the tire.
2/32
So the tires will "wear" evenly and you will have longer "tread-life"
As a general rule, you should replace your tires when the tread wear indicator mark is equal to the tread (The tread wear indicator appears as a raised triangle, or the letters TWI on the side of the tire). All ATV tires have a different tread life, depending on the application they are used for. And when used in applications they are not meant for, tires will wear more quickly. For instance, using a mud tire to ride on the road will wear out the tire much faster than using it in the mud.
When the tire tread wears down to the wear bars, the tires are ready for replacement.
It really does not matter how many there are as there are several around the tire. When the tread wear indicators appear flush with the tread you have 1/16" tread left and should look to replace the tires very soon.
When they show excessive wear at tread or sides or when they show signs of cracking below tread or on sidewalls When they show excessive wear at tread or sides or when they show signs of cracking below tread or on sidewalls When they show excessive wear at tread or sides or when they show signs of cracking below tread or on sidewalls When they show excessive wear at tread or sides or when they show signs of cracking below tread or on sidewalls When they show excessive wear at tread or sides or when they show signs of cracking below tread or on sidewalls
Yes, because the tire gets hot and this causes the tread to wear faster.
Have the alignment checked at a local automotive shop.