fordtruck71088

I am getting my rims and tires put on tomorrow, 20inch rockstar 2 on 33 inch toyo open country MT. Wanted to know your guys thoughts on the open country MT and if anyone has 33inch MT's on there truck if they can post a pic so I can see what it looks like. thanks.

uzikaduzi

i love my toyo m/t's... best wearing m/t i've ever had, low noise on the road, good on wet pavement (which surprisingly isn't very common on good wearing m/t's) I have 295/70/17's so it really won't give you a picture of how they'd really look on 20's.

the lugs do click on <5 mph speeds on the road but it doesn't bother me.

fordtruck71088

I know this is a stupid question but what is 295/70/17? i think that means 17inch rim but what size tire do you have?

uzikaduzi

not a stupid question

295mm wide 70% of that 295mm is the side wall height... (rim to tread) and 17 is the rim size in inches... basically 33.3" tall X 11.6" wide on a 17" rim.

fordtruck71088

ok, how do the MT's do off road?

uzikaduzi

they seem to clear well but not great when you are going very slow but that seems common to m/t's for me. i have no complaints traction wise and i've used them in mud and sand... i have not used them in the snow (because i'm in south texas) but a lot of m/t's end up floating on top of the snow and feel weird/uncomfortable in snow... that may have more to do with the width but i've never had an m/t be great in the snow anyways. not sure if the side lugs will be as effective on 20's (they probably will but i honestly have no idea) but on 17X8's i have yet to ding my rims on anything. there is something weird/cool... they are only 33.3" tall but if a bump into a curb or those things in parking lots that stop you from pulling forward more at any speed besides idle with my foot softly (not sure on speed but not even registering on the speedo) on the brake, they pull right up over them.

fordtruck71088

ok cool do you think a 20inch rims is to big for a 33inch tire? I wanted it to look aggressive don't want a goofy look. Also I wanted the tires to sick out just a little on the side but not sure if they will I guess that depends on your offset how far they stick out and I'm not sure what my offset will be i guess 12.50 if thats an offset

Z7What

There great in the mud, awesome in the street and wear amazing good! 50-70K out of. Had 38X15.50R20 on my last truck and at 50K miles before I sold it, they had alot of thread left and that was after many burnouts and about a dozen times down the 1320.

Wayne

fordtruck71088

actually i think the offset is +18 whatever that means

uzikaduzi

I personally prefer the look of a bit of side wall and they tend to ride better because more side wall acts like an extra shock absorber if that makes sense... now the look is subjective, on a 20 inch rim with 33's, you'll have 6.5" of side wall so it won't look like low pros with a mud tread. it will likely look good but again it's subjective.

offset is a different way to describe backspacing... back spacing is the distance from the part of the wheel that touches the hub to the edge of the rim... offset is the distance from the center of the width of the rim to where the part of the wheel that touching the hub. so another way to say it is... if you have a 9 inch rim, 1/2 the width of the rim is 4.5" so if it had 4.5" of back spacing, it would have 0 offset.

+18mm offset is relative to the width of the rim... so lets say it's 9 inches wide that means the part of the wheel where it meets the hub is 18 mm towards the outer part of the rim from the center of the rim. 18mm = .71is inches and 1/2 the width of a 9 inch wide rim is 4.5 so add .71 to 4.5 and you have 5.31 inches of backspacing which should work fine with anything less than a 12.5 inch wide tire and a level but if you were going to lift eventually, it's too much back spacing for most lifts. now if it's a 10 inch rim, 5.71" of back spacing is pushing the limits and would likely rub on a 12.5 inch tire.