I use these on both the front and rear. Very happy with the performance. The rear is great under breaking and very good acceleration. I haven’t been left wanting with the front tyre grip. Riding at Nundle and Attunga so the conditions cover pretty much all. Mud, loam, red clay, rocks, hard pack and fire trail. The rear clears itself really well of mud which is good. The nobs on the rear have started to get a slight rounded edge after 150km or so which I am happy with. Most of this would be from the hard Granite rocks at Attunga. Edge nobs hold up well and only started to tear off the prior set when the tyres was well and truly past their prime. In my opinion, a great tyre year round for a range of conditions. There will always be a better tyre for a specific type of condition but the AT81 works for me. Cost $250 a pair fitted. Prior to these I used Pirelli Scorpion Extra X which I believe lasted longer but didn’t grip as well. Still a good tyre though.