I have a 2006 Arctic Cat 500 4X4 auto and am looking at trading the stock tires for something more aggressive and maybe a larger size. The current tires are 25's. What would be a good tire size to go to without loosing too much power and without needing a lift kit?

 

my brother has 26" on his. No noticable loss in power, if you go much bigger tires
start to get real heavy

 

like he ^ said, i would go with 26s, even though you might be able to fit 27s without a lift
26s are just a better all around choice