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STI is dedicated to the design, development and manufacturing of high quality ATV and UTV tires. Their engineers are committed to developing tires that meet the highest standards and provide the greatest value to their customers. Rocky Mountain ATV/MC has many kinds of STI ATV tires, made for sand, snow, mud, tracks and trails. You can be sure any tire that Rocky Mountain ATV/MC sells is durable and built to last, but we also strive to provide incredible prices as well.
If you need two STI ATV tires, make sure you check out our ATV Tire and Wheel Builder Package which can save you up to 56%. Simply choose two tires and wheels using our filters search that will find the tires to fit your machine perfectly. Then our trained professionals will mount them for free and get them ready to be shipped along with the free valve stems you receive with your package. In addition, you also receive free ground shipping with any ATV Tire and Wheel Package.
Phillip in VA
The tire is very narrow, coming in at 6.75" mounted, the rim guard doesnt touch the rims there is an 1/8" gap between the edge of the tire and my rim all the way around and on both sides. The tire rides smooth and absorbs shock well but it just to narrow for a 7" rim, 5-6" rim width would be okay, but not 7" like mine. This is mounted as the front tire of a customized atc250es, Using a douglas .190 12x7 4/110 5+2Read All Reviews
Joel in Manitoba
I bought these a while ago after one year of recreational mx track riding. NOT racing. They started cracking around the tread lugs. After not riding for a year I spend money to go ride at a track and now my rear is leaking through a big crack in the lug I could probably rip the lug off by hand. All I ride is track and in sand no rocks or any spinning on anything that would wreck a tire like this. Front tires seem good. For sand and soft dirt I find they dig a lot and bite really hard. They have a lot of traction both front and rear but I'm not even half way worn between the wear indicator and where they were brand new and now I have to replace my rear tiresRead All Reviews
Mark in NT
This is my second set. The first are on my 2013 Rincon. Cant fault them. Tough, reliable, and a good ride to boot. i ride mostly hard pack, but when it rains in the Northern Territory, Australia, the mud is thick and deep. These tyres have not let me down yet. Of course I have been bogged a couple of times, but with a bit of weight shifting they find traction and drag me out of every bog hole I can find. Need to run lower pressures than normal. I'm runing about 2.5 - 3 psi. the side walls are very stiff and I reckon I could run them flat ( lower speed of course) to get me out of trouble. Will definately buy these again. 650kms on the last set and they hardly look worn considering the amount of circle work I do... lol. Cheers MarkRead All Reviews
Erin in AZ
Love them great everywhere I tried them true to size. Good price and they are supposed to last. All this in a radial tire. Found that on my RZR that 4psi works in the rocks and trail riding. Comments On May 25, 2014: Love them great everywhere I tried them true to size. Good price and they are supposed to last. All this in a radial tire. Found that on my RZR that 4psi works in the rocks and trail riding.Read All Reviews
Matt in CO
Did some reading on different paddle tires and decided to give them a try. Really disappointing! My friend has the 900 as well and went with the sand stars and he out climbs me constantly and gets a better jump out of the hole. Even on the stock big horns he passed me on a hill climb. Probably be a better tire if you have a turbo or more power but you can do better for less.Read All Reviews