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Hi Guys,

At the MTA meet last week I picked up a pair of NDTs that I'll use for the spares in the bed of my M's. They're in good shape, meaning no cracking or chunks missing, but one has a tread wear pattern I don't understand. I figure you guys have probably seen this before and can explain it. Check out the pic below......in the middle of the tread every other lug is raised. I would think that if the tire was overinflated the center would be worn the most, and evenly. I don't know what would happen if underinflated. What do you guys think??

thanks,
bob

Looks like bad shocks to me...

I have seen that wear pattern before Bob, there is even a name for it, it's called cupping and results from not rotating the tires as soon as it appears, pretty common on NDTs that run full time on the front axle.

Hes right its cupping, Its caused from tow end or tow out, it can be fixed easy in a afternoon on your MV.

that can also happen when a steer tire is low

Saggy springs can alter caster as well.

DG