I would think that "shifting on the fly", be it from low to high (or any gear), or 2WD to 4WD is not advisable on ANY machine.

Not sure about the Grizz, but you can go from 2WD to 4WD on the Polaris while moving, but it won't engage it above a certain RPM. If you engage it and the wheels are spinning... you'll do some damage... therefore not advisable.

 

you can shift from 2 wheel to awd on the fly yes, as long as the wheels aren't spinning(bad on the front end) and NO you can not shift from low to high or vise verse while moving w/out aloty grinding and maybe damage.

 

what happens when power steering goes bad? Is it like cars does it be become very hard or does it go to normal non power steering?

 

the grizz has a shorter wheelbase which makes it more nimble but you sacrifice climbing ability because of that. the polaris is about 3 inches longer in the wheel base and is also a little wider. the longer wheel base gives a better ride and handling. the grizz will be the least expensive also.

 

i believe it would be like steering a non eps xp, at least that is what my dealer told me.

not sure on the grizzly, but my buddy has put his 07 through some pretty harsh 800 miles and hasnt had an EPS problem yet. im hoping the polaris EPS is just as tough.

 

Twin:
1. You can stiffen up the front pretty easy. The adjustment tool comes with it.
2. Can you speak to this a bit more.....The 2010 XPs don't have brakes on all four shoes?

 

1. Yea i know. Im going to try to adjust them this weekend if i get the chance.
2. 2009 850's had rotors/brakes on all 4 wheels. 2010's Polairs cheaped out and went back to the single rear brake on the right side.

the braking isnt bad, but i liked the idea of 4 wheel discs.

 

just got home and adjusted the preload i guess thats what you call it.
went 2 clicks up front and 1 in the rear, thats what my buddy has on his grizzly, hopefully will get to be able to ride some this weekend to see if it helped.