I find MT 21 good for real off-road, but wears quite fast. TKC 80 is better for asphalt / Gravel and lasts longer. This is for rear. Front I use any cross-tyre.. I ride a lot enduro and use the front tyre from the enduro bike when i need to renew it on my off-roader. MT 32 normally. Pressure 1.2 - 1.5 max.