I currently have 25" Mudlites on my BF650. I want to go bigger.
Found these on EBay.
http://tinyurl.com/dr8om

Should I buy these, does it seem like a good deal?

Is the price he lists fair, or should I offer less? Thanks for the advice.

umm, interesting. i spent about a 100 more and received 27" Mudlite XTR (radials) with the 14 inch type 7 wheels (which look "sweet"), check with atvoutfitters.net that's where I got mine.

I have these on mine and love them, the wheels are great and easy to clean

I got mine from this place. http://www.xopco.com/html/atv_home.html I will definately go through them again to get some for my wife's Rhino, and about 20 bucks cheaper than your site.

I checked with the guys you mentioned. They quoted me $720 for the 27" XTR Radials on Type 7 14" wheels. The ones in the Ebay auction are 12" wheels. Don't want those.
Is $720 a good price?

I can't tell you for sure. I have the 12" wheels with 27" Mudlites. All I can tell you is that the site I referred you to is the cheapest I can find yet.

Well, I can attest to them being very friendly and helpful over the phone.

I have the 27" ITP XTR's with the 14" series 7 wheel on my BF 750 and I love them. They are a little rougher then the regular mud-lites on hard pack but other than that no complaints.

How do they slide? I imagine that since they make it higher, it makes it raises the center of gravity hence making it harder to slide the rear.

Not at all. Slide great. The 14' wheels have a smaller sidewall, therefore less roll.