wheel sizing (16x7 vs. 16x8 vs. 17x7.5)
#1
wheel sizing (16x7 vs. 16x8 vs. 17x7.5)
okay guys, as you can tell by the post count, i am a newb, but i think this is a valid question, and i was not able to find an answer while searching. If you have a link to a thread, I would be more than happy to read through it.
I am collecting all the parts I need to build my 4runner, right now I am weighing my wheel options. My vehicle is going to mainly be setup for trails, with the occassional low-level rock crawl. I am planning on running a 285 width tire.
my questions are these. I was originally going to go with 16x8s, but then I had a buddy who has done his share of crawlin, and he said that they would have a tendency to pop the bead, when deflated, and that I should go with 16x7s.
so i went to 4wheelparts(yea, i know) and talked to the guy, who said, that it would only be a concern with single digit tire pressures, and because of what my rig will be used for, he would recommend the 16x8s.
then i talked to my dad, who is an automotive/mechanical engineer by training, and he mentioned that a sidewall that big would have "squirrely" on road characteristics. and that i should consider a bigger rim. Now onroad is not my major concern, but it is of some concern to me. Anyhow I was considering maybe something like the tundra wheels in 17x7.5. coming from the sports car world, i am aware of what he is saying about stiffer sidewalls(to an extent) yielding better handling characteristics.
anyhow, your input/knowledge/opinions would be greatly appreciated.
I am collecting all the parts I need to build my 4runner, right now I am weighing my wheel options. My vehicle is going to mainly be setup for trails, with the occassional low-level rock crawl. I am planning on running a 285 width tire.
my questions are these. I was originally going to go with 16x8s, but then I had a buddy who has done his share of crawlin, and he said that they would have a tendency to pop the bead, when deflated, and that I should go with 16x7s.
so i went to 4wheelparts(yea, i know) and talked to the guy, who said, that it would only be a concern with single digit tire pressures, and because of what my rig will be used for, he would recommend the 16x8s.
then i talked to my dad, who is an automotive/mechanical engineer by training, and he mentioned that a sidewall that big would have "squirrely" on road characteristics. and that i should consider a bigger rim. Now onroad is not my major concern, but it is of some concern to me. Anyhow I was considering maybe something like the tundra wheels in 17x7.5. coming from the sports car world, i am aware of what he is saying about stiffer sidewalls(to an extent) yielding better handling characteristics.
anyhow, your input/knowledge/opinions would be greatly appreciated.
#2
Contributing Member
First, this isn't a sports car. The suspension and body roll are going to be far more of a concern than tire squirm.
A 285 is about a 33 x 11.50. I would go with the 7". It will retain the bead better when aired down and provide a little more sidewall bulge to help protect the lip of the rim so you don't get "bead leakers".
Check tire prices though - 17's are getting real popular now, and they could be significantly cheaper than 16's
A 285 is about a 33 x 11.50. I would go with the 7". It will retain the bead better when aired down and provide a little more sidewall bulge to help protect the lip of the rim so you don't get "bead leakers".
Check tire prices though - 17's are getting real popular now, and they could be significantly cheaper than 16's
#3
thanks for the input TC. makes sense about the 7" wheels holding the bead better, and getting better protection from the tire.
i definitely know it isn't a sports car, it's obvious every time i get behind the wheel. i now know who they made the cautionary miles per hour signs on offramps for now. If it says 35 you better go 35, haha. I understand what you are saying about the suspension, but trust me I can feel these tires folding under as is(265/70 Michelin somethin or anothers). However, like I mentioned it isn't my main concern, just something else stewing in the pot.
Thanks again.
i definitely know it isn't a sports car, it's obvious every time i get behind the wheel. i now know who they made the cautionary miles per hour signs on offramps for now. If it says 35 you better go 35, haha. I understand what you are saying about the suspension, but trust me I can feel these tires folding under as is(265/70 Michelin somethin or anothers). However, like I mentioned it isn't my main concern, just something else stewing in the pot.
Thanks again.
Last edited by AntiVenom7; 11-05-2007 at 10:05 AM.
#5
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I was looking at similar setups. I would say, if you are going to do some serious rock crawling, do the 16x7 on a 11" tire. If you go with a wider tire (not recommended) do the 16x8. 17" tires are becoming more popular and available, but I read you'd really have to do a 35" tire to safely crawl. Thus I went w/16x8's. Still searching on a good set of tires. Not sure if 265/75, 255/85, or 285/75. I guess the best deal will determine it for me.
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