thanks for the info.

 

I have the itp 589s on my cat , really like them for digging and going anywhere , but.... its like riding a manure spreader , i also added itp wheels C series they add a couple inches in width to the machine. Very good ride with these tires though. Just dont ride in the yard!!!

 

thanks for the info, any one else ride with bi/tri magnum tires? iam surprised more people dont have these. I think its the price?[img]i/expressions/face-icon-small-confused.gif[/img]

 

they aren't advertised much. The connection did a test on them back in 99 I think. I don't know if its still on here. ATV magazine did a test with them and a lot of others once too. If I can find the link I'll send it to you. They were the direct competition for Vampires in the late 90's before everyone else started making 27" tires. Back then, about all you could get in a 27 was this, Vampires, and those narrow ITP ag tires. The Bi/Tri claw combo is a great choice that is often overlooked due to increased popularity in several other tires.

 

http://www.atving.com/editor/review/...law/review.htm

http://www.mudtires.com/tire_reviews.html

http://www.atvnews.com/output.cfm?id=48925

http://www.atvextreme.com/reviews/magnums.htm

These have some information. The one on ATVnews was a shootout with a lot of different things in it.

 

thanks andy. I have also noticed that these tires are not advirtised as much as the others. All the info I have read is making me lean towards these tires. Besides that exhaust you have on your grizz, did you have to do any clutch work to really be able to spin them in the thick mud? and what is your top speed now? and are they stable at high speed? not that I ever drive really fast anyway......but just in case[img]i/expressions/face-icon-small-smile.gif[/img]

 

I swear I wrote a big reply to this yesterday, and I guess it didn't take.

They drag the Grizzly down some in high range. It pulls them easy in low. High is noticeable in hillclimbs, and I don't mean on trails. Just the slow steeper ones. Top speed all out downhill is maybe 60-61, but of course they affect the speedometer so it might actually be correct. The same stretch with stock tires is 68-69 which translated into 64-65 on a GPS.

I had the same set on my 99 AC500. It didn't seem to get pulled down as much as the Grizzly does, but it was also a manual shift. It pulled them good in all ranges even on hills. But of course it was tuned more for torque. I'm not saying that the 500 could pull them as good as the 660, I just mean they affected the 660 more than they did the 500 if you were to put it in a ratio of before and after difference.

Never mudded the Grizzly. Don't want to get that crap in there and screw stuff up. I mudded the AC, and those tires tore *** in the mud. The AC500 spun them just fine in high range too. The 1st gear high range was fairly high, and I normally kept it in that or in low range 2nd. They will go through some unreal places.

Like I said, this tire doesn't do as well climbing steep hills that are dry loose dirt or leaves. A 589 would be better suited for that. In the mud, they will beat a 589 any day. But then again, thats their purpose. And again, I rode a Rubicon with 25" 589's quite a bit, and never thought they rode as comfortable as my 27's on my AC. On the same hand, an AC rides better than a Rubicon too, so who knows.

Depending on your purpose, you wouldn't be let down or dissapointed with them. Especially if you had a 2nd set of straight trail tires around to switch out.

Tread wear is like any other giant mud tire. Mine have over an inch of tread, probably have close to 2000 miles on them in 4-5 years. Can't remember how long I've had them. Probably since early 2000. Have 2 plugs in them, both from nails. They are very hard to puncture. Never punctured them in any other way, and I've been over a lot of rocks with them. They are the best 4 ply I've ever seen.

I run 5-6psi front and 4-5 rear to keep the sizes close together. Both on 7" ITP chrome deltas.

 

Just to add a thought Andy. When I owned the Suzuki King Quad, I had claws on the front and 589's on the rear. Riding in tall grass was never hard to steer on the Suzuki. But if you get in tall grass with these 589's all around, you'd better be ready for anything. The grass takes the handlebars right outta your hands if you're not careful. And of course, as you said, your tires can only do so much. I prefer the 589's because I can ride them in all weather. Sand is another thing but I don't ride sand unless it's where I can't avoid it anyway. My riding partner, Haynez, owned a Rincon with 589's on it and hated the ride. I think they're not bad at all on the AC. I suppose it's just preference.
Chuck