Hello, I have just joined this sub because I know nothing about bikes or mountain biking but have just bought my son a second hand bike. Does this tyre need replacing please? It looks worn to me in comparison to the other one. Pics of both tyres attached, plus a (not very good!) pic of the bike. Am in the UK and paid 125 for the bike. Is it worth getting a new tyre for it? He's just starting out, only going out having fun with his friends, nothing serious. Thanks!
by tillydeeee