Tires, Wheels, & Brakes Discussion about wheels, tires, and brakes for the new MINI.

Rota Slipstream 15x7.5, 16x7.5 and 16x8 GROUP - SPECIAL ORDER

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  #26  
Old 03-07-2006, 04:32 PM
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gunmetal and grey look pretty nice. anyone?
 
  #27  
Old 03-07-2006, 05:12 PM
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I'll take either.
 
  #28  
Old 03-08-2006, 12:44 AM
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I've looked around a bit more I think I would be happier with the steel gray, but I'll take gunmetal if that's the more popular choice.
 
  #29  
Old 03-08-2006, 12:39 PM
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steel grey looks to much like silver to me. id go with charcoal grey. i kinda like charcoal grey more than gunmetal.i wanna stay away from the silvers and chromes. anything on the darker side will be fine. kurvhugr have u gotten ahold of oasis? hes settin up this groupbuy but i think hes out of town right now. maybe we should get an updated list up, to see whos in now. check charcoal grey out at subydude.com if u want.
 
  #30  
Old 03-08-2006, 06:15 PM
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I change my vote to charcoal gray! [I know it's not a Slipstream, but it's the best pic I could find in this color]


Now all we need to do is get some more folks in on this.....
 
  #31  
Old 03-08-2006, 08:27 PM
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I'd go in on this for 16 x 7.5, but I don't think 16 x 8 will fit without a lot of effort, and probably suspension mods (that I don't have).
 
  #32  
Old 03-08-2006, 11:05 PM
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There's a workable 16x8 solution, we just have to get the offset right and then make good tire choices. The "special" aspect of this order is we get to specify a non-stock offset and Craig is going to work that out. I have 225-45s on my 16x7.5s and I'll use the same tire on the 16x8s; the result is such a small change I have no doubt that with the right offset there will be no fitment issues.
 
  #33  
Old 03-09-2006, 12:24 AM
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Guys-

I am still interested in a set of 16x7.5's or 16x8's, IF I can get some real flavor for fitment and tire sizes to use for STX.

Do you guys want an ALL Charcoal Grey wheel, or Grey with the polished lip?
.
 
  #34  
Old 03-09-2006, 07:10 AM
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i think charcoal grey is a great color. my vote also goes for that. id want to go with the all charcoal grey wheel and stay away from the polished lip. but depends what everyone else wants. and im with kurvhugr on the fitiment issue. i think we should be all set. we have the chance to choose the best offset for our mini, so it hopefully a matter of tire choice. i mean people have run bigger tires than these without to much suspension work. theirs a bunch of people running the hamman 17x8 without much problems. right? once craig get back he gonna get measurments hopefully, so we can get htis going.
 
  #35  
Old 03-09-2006, 09:27 AM
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Ok, maybe I'm wrong on the fitment of 16 x 8.
See this analysis of the situation by gowest:
https://www.northamericanmotoring.co...785#post257785

Keep in mind that the forged Volk probably has a thinner lip than the cast Rota. But, it looks to me like a 45 offset would be a good compromise on fitting front and rear.
 
  #36  
Old 03-09-2006, 09:29 AM
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If everyone is confident that we can get an offset that will fit and we are all satisfied with Charcoal Grey (I guess I can live without the polished lip), then this deal is starting to smell like a winner to me!

HHEELLLLOO CRAIG !!
.
 
  #37  
Old 03-09-2006, 01:08 PM
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yea we need to make sure we get the correct offset. thats the only thing im worried about. i would like to be able to run these on my stock mini. i plan on doing suspension mods but i wanna get rid of these s-lights and runflats first.

so everyone agrees on charcoal grey. also craig said that he was gonna get measurments from his setup. but he has camber. will his measurment for offset still work for people without? anyone have any ideas on this? im not to knowlegdable about offset.

now all we need is CRAIG!!!
 
  #38  
Old 03-09-2006, 01:34 PM
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Originally Posted by inimmini
Ok, maybe I'm wrong on the fitment of 16 x 8.
See this analysis of the situation by gowest:
https://www.northamericanmotoring.co...785#post257785

Keep in mind that the forged Volk probably has a thinner lip than the cast Rota. But, it looks to me like a 45 offset would be a good compromise on fitting front and rear.
I guess I should go back and update or clairify that post but here is what you need to know.

I have forged, 16x8 Volk ce28n's, +42. The actual total wheel width is a little short of 9", call it 8.96875" or 8-31/32". And YES this number is important, it's that close on a +42 wheel. The WHEEL clears my KW strut by 2mm. It works for me even though KW recommends a 5mm min.

This total width could/will vary from one wheel model to another. Past experience shows me that most cast wheels are 1" wider than the designated rim width but COULD be more. My forged, 15x7.5 SSR comps or the other hand are 8.25" total width which really helps in the rear.

Tires are 215/45/16 Azenis 215's with a mounted width of 9", so my tire clears the strut by the same 2mm. NOTE, this tire is wide for it's size but I would expect to need to space out ANY 225 width tire on a 8", +42 wheel.

So there are 2 important issues here for the FRONT wheels.

#1. total width needs to be 9" or less for a 16x8, +42. If wider, subtract 1/2 the extra width from the offset. ie. If total width is 9.2" you would need .1" less offset. .1" = 2.54mm so a +40 to +39 would be needed.

#2. mounted tire width, needs to be 9" or less on a +42 or offset changed / spacer used to make up the difference. ***

***Factory struts have an indentation on the side that is directly beside the widest part of the tire. This gives an extra 1/4" of TIRE to strut clearance. If your tire is wide and tall watch out for tire to spring perch clearance.


A 215/40/16 Falken I have is narrower than the Volk rim, so when stacking it's rim to rim and not tire to tire, with the 215/45's it's at least a little tire to tire.

16x7.5's are a simpler fit.

Since there are so many posts that ask, what will clear, I will start a new post to explain "Maximizing Rear Wheel and Tire clearance" If you are willing to make some changes to the rear suspension you can create more clearance than you would otherwise have with a 16x8, +42 wheel. Mine worked by raising the rear from ultra low, to just very low, and raising rear spring rates some more. I DO NOT allow for the triming of fenders as that is against STX rules.

Someone seriously needs to measure the TOTAL rim width of ANY Rota Slipstream to find out how much wider it is than the designated rim width! If another model wheel is considered that would need to be checked as well.
 
  #39  
Old 03-09-2006, 01:56 PM
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wow! thanks for all that info. someone needs to find out how wide the slipstream is. wonder if we could contact 18racing and they could find out.
even if it was 9in wide you could still correct that with spacers right? i think that was the point. and then you have to watch how wide of a tire you choose. ill just go with whatever gowest has since he clears.

craig!!!
 
  #40  
Old 03-09-2006, 02:10 PM
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Originally Posted by jammin636
wow! thanks for all that info. someone needs to find out how wide the slipstream is. wonder if we could contact 18racing and they could find out.
even if it was 9in wide you could still correct that with spacers right? i think that was the point. and then you have to watch how wide of a tire you choose. ill just go with whatever gowest has since he clears.

craig!!!
9" ok with my tires and no spacers. Rear issues to be cleared up in seperate post. Think; roll control, camber, and 4 control arms for best results.
 
  #41  
Old 03-09-2006, 07:04 PM
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Richard -

Exceptional info - thank you!

It sounds like all of us will end up with unique combinations of suspension parts (everything from dead stock to full coilovers with fat tubes), alignments (from street to pure track) and tires (different brands & sizes). I am getting the feeling that, in order to safely accommodate the plethora of potential combos, we may need to compromise the size a bit to 16x7.5's.

Do you agree, since we have to ALL agree to order 5 identical sets to launch this special order? Or do you think that the gamble of pushing the size envelope is worth the risk?
.
 
  #42  
Old 03-09-2006, 07:41 PM
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16x8s for me please - I already have 16x7.5s. I'm very happy with them, but I'm in on this because I want to try 8s.

I'm not so confident in the fitment that I'd "assure" anyone else, but I'm confident enough to want to try it myself. If the size changes to 7.5, no problem, I'll just go look for something else.
 
  #43  
Old 03-10-2006, 01:59 PM
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the 17x8 Hamann are +43 et and there are quite a few out there on lowered cars so that should work with a 15" or 16" wheel as well.
 
  #44  
Old 03-10-2006, 03:39 PM
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Originally Posted by rl48mini
the 17x8 Hamann are +43 et and there are quite a few out there on lowered cars so that should work with a 15" or 16" wheel as well.
No it won't for a 15x8, probably not a 15x7.5 or a 16x8. But YES for a 17x8. The problem is the rear trailing arm shape, it's curved in toward the wheel, the closer you get to the center the less room you have for the wheel.

But I have a fix that will take care of all but the 15x8 and may even take care of that. You will need all 4 control arms and be willing to reduce your rear track.
 
  #45  
Old 03-11-2006, 04:02 PM
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i am also only in this for 16x8s. if the group buy decides to change down to 7.5, which i doubt it will, i will also have to look elsewhere. the only size change i would agree with is if we downsized to a 15inch wheel instead of 16. but id rather go with a 16 inch wheel.
i also think that it would take 10 people to get a 15 inch group buy going because rota doesnt make that size or something. it would be super special oder. im wiling to take a chance with these wheels. ill get them to fit eventually. if it takes control arms and camber.
 
  #46  
Old 03-13-2006, 08:36 AM
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so is anyone else officially in yet? we need an updated group buy list.
 
  #47  
Old 03-21-2006, 08:45 PM
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OK, I'm back in the saddle.

1) Oasist
2) Jammin
3) Kurhugr
4)
5)

I'm going downstairs to measure my 15x7 right now.............
 
  #48  
Old 03-21-2006, 08:54 PM
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OK, I measured them, they are a few hairs less than 7 7/8" So, the 16x8's should be roughly 8 7/8". So, thats good news, they are a bit on the better side of gowests Volks.

The main issue I forsee is the differing suspensions and camber. I think if we go with a 40mm offset, we can use spacers if needed. My motons appear to be a real tight fit on the front inside and the rear is tight as well, but, I have some good negative camber up front and in back.

Anyone else want to be added to the list?

Color is not important to me, so, Kurvhugr and Jammin need to sort it out amongst themselves now so we can post the color before the masses jump in. I personally like dark colors, but, I have so many freakin sets of Rota's, it would be selfish of me to demand the color pick, and, Kurvhugr is a fellow Wilcox, so, I would like to see him on the group buy. lol

Craig Wilcox
 
  #49  
Old 03-23-2006, 01:08 PM
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id think charcoal grey would be a good choice. i think thats the one we were talking about before. thats great news about the measurments.
 
  #50  
Old 04-03-2006, 09:52 AM
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i guess nobody wants these wheels
 


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