On motorbike tyres what is 'cupping'?

Question

what is it, is it a good thing, why would you do it

Answer 1

it is what occurs at the bead of the tire and the rim. just a term for seating.  

Answer 2

If it is a street tire your talking about cupping is the ware pattern. When a tire cups get a new tire

Answer 3

Cupping is a bad thing, its not something that you do, it just happens with certain tires on certain bikes. Older generation Dunlops were notorious for cupping. I could cup one in 500 miles, giving me less contact patch, I stayed away from them for years. I think they finally beat the cupping with the 208.

Answer 4

Well said Proc.

Cupping does not matter in racing, as you just bin your old tyres.

Answer 5

This should help

http://www.kaltire.com/commercial/medium...

not exactly sure what it has to do with Racing though. tyes are usually new for obvious reasons