It may seem daft but can anyone tell me when i should get a new rear tyre? 
My current one is still full depth on the tread but is rounded on the leading edge, not all the way though. Should i buy a new one or turn it around?  
Will it make a difference,i know on an old motocross i had, i did this and it improved but does it matter for trials? 
Hope to hear from someone[ ive never used a forum before] cheers phill....