JT Pedersen
Well-known member
Greetings,Yeah decisions,decisions! Like I said pretty flat in Indiana! Now if someone could give me some hits to whats causing the cupping issue that would be great. Hate when stuff wears funny. I've made no changes to bike since I got it 2 years ago.
My experience with cupping on a lot of tires is that higher tire pressures can help mitigate the problem. With my PR3, I kept the front at 40psi consistently and, combined with smaller tread blocks, found it developed a mild hum after ~2K miles, but never got any worse.
What I noticed with PR3s is, unlike any other tire I've ever had, they tend to loose pressure. Mine seemed to loose 1-1.5PSI/week. So if I went 3 weeks w/o checking tire pressure, there were times I might find the front down ~4 psi, the rear as much as 7 psi. Dumbfounded.
Talking with other PR3 riders, on non-FJR machines, I have found they noticed similar behavior. If you've not been more attentive to your pressures than with most tires, I could see that contributing to cupping.