Shagged Knobbies??

[Skid Jackson]

I have dunlop 756's front and back. The center knobs are down to 10 mm (front & Back) which is about a strong 3/8 inch. the side knobs are still a good size. The tires don't look bad, rear knobs are a little rounded no chunks missing etc. The front knobs dont' look bad at all. Is 10 mm pretty good evidence that they are worn out. Could you get away w/ cutting a fresh edge into the rear or maybe changing the direction of rotation??

Word up Dudes! Ride on or replace'em??

 

[los36]

I'd say 10mm is pretty worn out. If you only ride on hardpack you might be able to gain a little more bite by cutting fresh edges, but I'd replace 'em.

 

[Zenith]

You can keep riding until they're slicks if you like, there's no point in replacing them until YOU feel you have lost too much grip. I used to ride trails and such like and would wear a tyre right down, but for MX I try to get a sharp edge for every race. For the front tyre though I wouldn't let it get too bad, loosing the front end is WAY worse then loosing the back. I usually replace the front tyre when the knobbies begin to crack, although this only happens to certain tyres so you'll need to use your own judgement on that...
Cutting a sharp edge will take a lot of time and isn't really worth it on such a worn tyre.
That didn't really help much did it? Well basically your not going to do damage letting the tyres wear down, except maybe to yourself!