First off, I searched (extensively) with no answer to my questions. Looking at 16X7s with a 51 offset. I don't understand offset and need to know (fairly soon) if these will fit the OZ. Thanks in advance for any help!

 

try this https://www.evolutionm.net/forums/sh...ghlight=offset I typed offset in the search engine and found it.

WADAD

 

I found the same thread, but it doesn't tell me what i need to know. Deosn't address if 51 offset is too big. Thanks though.

 

I believe 51 is way too much for a lancer. I have 16x7 with a 42mm offset, and they fit very well (I can barely fit a finger in between the tire and the rear shock housing). With that in mind, I would predict that a 51mm offset with similar sized tires would bump into the inside before you can even get them on the studs.

Now here is my best understanding of offset (if I am way off, someone please correct me): Offset is where the wheel bolts to the car in relation to its center. For example, a 0 offset means the wheel meets the car right in the middle of the rim. A positive offset means the meeting location is towards the outside of the rim (this is the case on our Lancers and just about any fwd car), while a negative offset mounts towards the inside of the rim (I believe rear dragster wheels are made this way).

Now, taking my rims for example, a +42mm offset means the meeting place is 4.2 centimeters (42 millimeters) off from the center of the rim (towards the outside). I believe the reason for fwd cars having a positive offset has something to do with the drive wheels and how turning affects the pull of the drive wheels.

Ok, I hope that was helpful and correct (I looked at that other thread and didn't see any useful info at all), but the important part is that 51mm probably wouldn't do you any good.

 

Brian-

Thanks for your help.

 

got a questiong tho..so is 38 too small offsets for lancer? or it whould ride OKAY but might rub once a while?!
btw wheel size is going to be 205/45R17.... and wheels are 17x7

 

naw 38 is nto to small, the resarched this big tme liek 2 weeks ago before gettign mine, the reccomended offst is 35-40, but but ys the 42 does fit quite snugg...still got to take my car back periodily to have them checked (got sent wrong offset, wanted 40 got 42)
urban knight as 42 so im guesing mgoin to be ok, but yea 35-40 recomended

 

18" Racing / Harte C2s + Nitto ESS 225x40x18 tyres

 

nice !!!!!!

 

I don't recommend using a 35mm offset on a 7" wide rim. 35 is the offset on the stock 6" wide rim, so on a rim 1" wider than stock, the same offset will bring the wheel 13mm (1/2 inch) closer to the outside of the fender. That in combination with the wider tires used can cause the rub everyone is so afraid of.

Simple calculations: offset is measured from the middle of the tire to where the rim meets the axle. where stock rim width = w1, new rim width = w2:
(w2 - w1)/2 = offset needed to keep stock fender gap (horizontally)

example (my rims): (7 - 6)/2 = 1/2, which is about 13mm
stock offset is 35, + 13 = 48 (to keep stock track dimensions)
my offset is 42, 48 - 42 = 6mm closer to the edge of the fender than stock.

Those of you with 40 offset will be 8mm closer than stock, and Will will be 10mm closer, but he should be fine with that since his tires are also almost 10mm skinnier than mine (mine = 215, his = 205). And finally, 35mm offset on a 7" rim will be 13mm (a whopping half inch!) closer to the fender. Kinda risky if you ask me. But rims don't come in any offset you want, so something around 40 (give or take a couple) SHOULD be fine.

And just to clarify, when I rubbed with a 40mm offset, I was also trying to squeeze 225/45/17 tires in there. Stew must have found the perfect offset, because those tires have got to be like 2mm from the inside, 2mm from the outside, and fill that fender gap oh so nicely!

 

damn urbanknight..think talking to you for like 5 minutes woudl have probably saved me 1-2 weeks searchign the web for answers on wheel sizs and offsets