well when you put them on a atv they will decrease the top end but this is not a sled.this track system on a atv will out work and go places that a sled wont go.they are not ment for going fast(top end on a 09 grizz 700 40mph).and for your snow problem u will have probs if in deep snow and do not use a sock/prefilter 4 ur intake.if u want to go fast buy a sled if u want to have all year round fun this is the way to go.oh by the way u will have less roost with camoplast due to the design of the track.

yamaha now has there own track kits called tric track.
but of course it is made by the best manufacutre out there wich is camoplast you should look long and hard into wich one u r going to purchase (lots of vids etc).i have and on jan 01/10 it will be tric track for me(same as tatou 4s kit by camoplast)i have a 09 griz 700.you will have a loss of speed etc but for me that is ok just going ice fishing some trail riding etc.cant wait