Rear Tire

[zoltan57]

i have a avon cobra rear  tire and i notice alot of cupping.. it maybe has 6-7 k on it and always kept my tire pressure at 40psi.... my last avon lasted 19k before i had to replace it... any suggestions why this happening?
thanks,
Emrik

[CajunRider]

Not sure about the Avon rear... but the Metzler ME880 liked 42 minimum.  It would wear better at 44. 

Maybe you could try adding a couple pounds??? 

Again... I only had Avons on the front, so I'm not sure about the rear. 

[R J]

When I was on the m/t I run 46 to 50 #'s in them.

More pressure will help keep the tire from cupping.

That is really one reason I went to a C/T, which I run at 36#.

It is a Goodyear Triple Tread.

[Canuck]

That's only 3 cents per mile.  Well worth the smiles and enjoyment the Valk gives back.  I run 42 to 44 lbs in the rear, depending on the type of riding and how much gear I'm packing.  Pressure check every couple of days.  I just replaced my shock bushings and am in the process of replaceing the dampners.  I'm hoping this will help add a few miles to the tire - can't hurt

[F6MoRider]

What balancing options are you using?  Wheel weights, ceramic beads?  Cupping on car tires is usually caused by a tire imbalance.  Maybe worth checking into?

Oh yeah, overloading and bad shocks do that as well.

[zoltan57]

Thank you for your helpful suggestions... at this point i started by ordering 4 new shock bushings and im going to install them, im going to get nitrogen in my tires instead of compressed air.. i heard alot of great things about nitrogen.. met a guy in florida who had nitrogen in his tires and he noticed a big difference in handling and tire wear and alittle savings on gas.. so i found a place in denver to go to .. 10 bucks to do both tires.. im going 42 in the front and 44 in the rear,... also for any of you that are members of costco... they put nitrogen in all the tires they sell and and its "free" to members check that out...

[cajundood]

what about co2? you can still get those lil tire inflators that use the co2 cartridges. wonder if that is just as good as nitrogen. i use balance beads....THEY ARE WONDERFUL 

[Tx Bohemian]

...im going to get nitrogen in my tires instead of compressed air.. i heard alot of great things about nitrogen.. met a guy in florida who had nitrogen in his tires and he noticed a big difference in handling and tire wear and alittle savings on gas.. so i found a place in denver to go to .. 10 bucks to do both tires..

I already  put 78% nitrogen in my tires, at home from my compressor.

Just a suggestion: do a bit of research on the "nitrogen filled tires".
It might surprise you.

IMO, and I'm sure this topic is like "oil brands" and "rear tire usage", all the claims of nitrogen are true but very miniscule in advantages to us normal, everyday drivers.
To me it would be a more PITA to have nitrogen and have to go to a "specific" place to top off once they get low. Especially if I'm out on a ride and have no idea where there is a "nitrogen filling" place.

But again, this is just my opinion and as we all know (like certain orifices of the body) we all have one.