18x10 in rear???
#1
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18x10 in rear???
I am looking to get 18x10 with a +42 offset C
Was wondering if this will fit with the stock suspension setup on a r1 or if i need 2.5 coilovers?
Was wondering if this will fit with the stock suspension setup on a r1 or if i need 2.5 coilovers?
#7
I don't think you need small-diameter-spring-coil-overs to run 18x10" +42 in the rear. You might catch the fender lip with the tire, though. You might need to roll or cut the fender lip, run more negative camber, or use a more narrow or round-profile tire to avoid rubbing. Or it might just work as-is -- I'm just giving you some options for things to try if you do find that it rubs.
-Max
-Max
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#8
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Originally Posted by SpeedKing
BTW, Mr. lane_change, are you running aftermarket toe links/trailing arms too?
#10
Originally Posted by speedx7
its good to know that I don't have to roll fennders for 18x10
-Max
#13
Originally Posted by ptrhahn
I'm running 18x10 +42's with a 275/35 tire. No special equipment, or rolling required.
-Max
#14
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Originally Posted by maxcooper
It might be my tires. The 285s that I have (BFG R1a DOT-R track tires) are very square.
-Max
-Max
#15
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T1-S are a very round-shouldered tire, but it sdoes have significant rim protector bars that stick out well past the rim lip.... so your results may vary. It is close. However, you can't go on looks. Mine looks for all the world like it'll rub but doesn't... I don't know how much more you could push that.
Originally Posted by maxcooper
It might be my tires. The 285s that I have (BFG R1a DOT-R track tires) are very square.
-Max
-Max
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Originally Posted by DonaldC
They should work fine. My friend had 18x10 with a +45mm offset with only racing beat lowering springs. He had no problems at all. So a +42mm offset should work fine. And, he ran 285's on them.
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Originally Posted by suprfast93
Sounds like it should be fine with the stock equipment. I am going to run a 275/35/18 and 255/35/18 for tires.
They'll fit , but close to the limit on stock fender lips (I've seen 18x10 +41 work with 285-30-18). Fronts are okay too.
Gene
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I planned on running 295s on 10 inch rims. After reading all of this I guess I need to stick with the 30 profile, not the 35. Too bad since there are more tires available in the 35 ratio I like.
#23
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Originally Posted by rynberg
Your logic is flawed, a +42 offset is a WORSE fitment than a +45 offset!
18 x 10", +42mm offset
10" = bead to bead, +1" = 11" overall wheel width
11" / 2 = 5.5" wheel centerline
+42mm / 25.4 = +1.65" offset
5.5" + 1.65" = 7.15" back spacing
11" - 7.15" = 3.85" front spacing
Maximum front spacing in the rear is about 4.0", so you have a little clearance there. Maximum back spacing is about 7.0" with stock diameter springs, so the Tein coilovers he has are probably necessary for adequate clearance.
18 x 10", +45mm offset
+45mm / 25.4 = +1.77" offset
5.5" + 1.77" = 7.27" back spacing, which is even worse as far as stock springs are concerned
11" - 7.27" = 3.73" front spacing, which gives more clearance in the front
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Originally Posted by z8cw
I planned on running 295s on 10 inch rims. After reading all of this I guess I need to stick with the 30 profile, not the 35. Too bad since there are more tires available in the 35 ratio I like.
Gene
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Originally Posted by jimlab
That depends on whether you're talking about the front or the back of the wheel. +45mm is better for clearance with the fender lip, but would require coilovers and possibly aftermarket trailing arms for clearance in the back with a 10" wheel, not that a +42mm offset wouldn't also.