Lip on rubber tyre
 

Hello Guys,
I have been testing with rubber tyres, I don't have experience with them, I have run for 4-5 packs, and it have appear a small lip of rubber in the inside of the tyre, why is this? how can I solve it?

Thank you in advance

You could be running too much camber.

+ 1 camber..

or the insert is too thin maybe..
i have found that if the tyre compresses/flattens a lot it can wear the tyre like you have experienced..

also could be the sidewalls are too hard..
can happen when you glue your own tyres but leave a lot of glue on the sidewall (hardens it up too much and cant flex etc)
some ppl like this, but i'd say combined with too much camber and you're heading towards that lip you've described

too much negative camber or your tyre insert is too slim or too soft...may i know what tyre are you using ?

thanks