I just put my 27" Mud Bugs on my '02 Griz and in the thick stuff it will not turn them at all in reverse,my '01 & '00 Grizzly turned them with no problem at all.The belt starts to slip but its not water or mud as soon as I put it in low it pulls fine,then back in reverse does the same,but only in the thick goop.The rev limiter kicks in as well before the wheels even budge in reverse.The tires are 27x10x12 front & 27x12x12 back on ITP Black&Chrome steel wheels,I reversed the rear rims as these tires were on my '01 Griz.Do I have to put smaller tires or what,I am looking at ITP 589's on alluminum rims but I don't know what size to order.Or is my Grizzly sick, I have around 900 km's on it and no other problems at all to speak of.Any Help would be nice,thanks.

 

I was in some thick stuff with my stock tires and it would not turn them in reverse either but it only had 5 hours on it so I didnt push it very hard