Well I've got them no reason not to give them a go.I really generally only run 40-45.But my buddies both have MMM combo's and they like to get silly and run around 50,and I'm just not so good at letting them whip me.So inevitably I throw 6s in there without regearing,and inevitably I'm reglueing or replacing a tire.Life was just so much easier when I was stuck with 45 and 4s.