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Old 01-10-2020, 03:27 PM   #1
Nickagriffin
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Default Style 42's on a 240

Hey all,

I recently got a set of 17" BMW style 42's. They are the ET20 version. Does anyone know what kind of adapters I'll need for these? I know the bolt pattern obviously, but width? Are the bmw wheels hub centric?
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Old 01-10-2020, 06:01 PM   #2
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Here ya go.
https://forums.turbobricks.com/showthread.php?t=338190

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Old 01-10-2020, 06:37 PM   #3
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Pfffft.
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Old 01-10-2020, 06:41 PM   #4
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5x108, 65.1mm hub bore -> 5x120, 74.1mm hub bore. You will want a 20mm spacer max. If you can get away with it, a 15mm adapter will make things easier to fit. You will have to relocate your rear axle and cut and roll your fender lips. If you want to lower the car, you will also have to massage your inner wheel well, about 5" above the fender line. moving the axle forward 3/4" helps a great deal with clearance.

Fronts should not give you problems.
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Old 01-10-2020, 06:54 PM   #5
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Why not just have them redrilled so they bolt up and do not require spacers?
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Old 01-10-2020, 07:06 PM   #6
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Who likes sunk wheels? Nobody? That's what I thought.
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Old 01-11-2020, 09:55 AM   #7
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Quote:
Originally Posted by Nickagriffin View Post
Are the bmw wheels hub centric?
Short answer: Yes.

Hub-centric is about the hubs (or hub adapters). A wheel will only be hub-centric if the hub fits well enough to center the wheel. If a custom adapter is sought, it would be best if it was hub-centric.
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Old 01-11-2020, 01:53 PM   #8
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Quote:
Originally Posted by Harlard View Post
5x108, 65.1mm hub bore -> 5x120, 74.1mm hub bore. You will want a 20mm spacer max. If you can get away with it, a 15mm adapter will make things easier to fit. You will have to relocate your rear axle and cut and roll your fender lips. If you want to lower the car, you will also have to massage your inner wheel well, about 5" above the fender line. moving the axle forward 3/4" helps a great deal with clearance.

Fronts should not give you problems.
15mm is the thinnest motorsports tech makes fyi.
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Old 01-13-2020, 11:02 AM   #9
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You will have to relocate your rear axle and cut and roll your fender lips. If you want to lower the car, you will also have to massage your inner wheel well, about 5" above the fender line. moving the axle forward 3/4" helps a great deal with clearance.

Fronts should not give you problems.
How would one go about relocating an axle? Is this a super involved process? If so, I might just sell the wheels and start over again.
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Old 01-13-2020, 12:33 PM   #10
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Probably easier to re-drill the wheels.
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how psi stock cna support?

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Old 01-13-2020, 01:20 PM   #11
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Who likes a molested and bent shell with flush wheels? Nobody? That's what I thought.
Fixed.
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Old 01-13-2020, 01:50 PM   #12
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Fixed.
Your shell is molested and bent
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Old 01-13-2020, 02:21 PM   #13
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Why not just have them redrilled so they bolt up and do not require spacers?
because too many holes
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Old 01-13-2020, 04:22 PM   #14
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Your shell is molested and bent
Yea but not on purpose, also your mother smokes Cuban cigars.
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Old 01-13-2020, 06:52 PM   #15
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Yea but not on purpose, also your mother smokes Cuban cigars.
My mother smokes those girly skinny long cigarettes, thankyouverymuch.
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Old 01-13-2020, 10:45 PM   #16
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Would adjustable torque rods make enough of a difference to fit the rears?
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Old 01-13-2020, 10:59 PM   #17
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No that will just screw up your pinion angles.
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Old 01-13-2020, 11:44 PM   #18
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Another guy fit these wheels without changing the rear axle location. Plus I'd only be running 215 wide tires. I don't see why a relocation would be necessary.
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Old 01-13-2020, 11:54 PM   #19
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Is the car lowered? If so you may need to bring the axle forward to center it. If not, you may still need to trim the fender lip, use the thinnest adapters possible. You will have a lot of room on the inside of the tire and none on the outside.
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Old 01-14-2020, 12:02 AM   #20
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Yeah it's lowered. Think I'm just gonna sell these and try to find something with a FWD type offset. This build is super budget so not trying to spend a bunch of money on suspension parts
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Old 01-14-2020, 12:05 AM   #21
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They don't fit unless you fill and drill.
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Old 01-14-2020, 12:11 AM   #22
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Do you always talk in riddles?
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Old 01-14-2020, 01:08 AM   #23
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Do you always talk in riddles?


Always best to confuse them with the facts.
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Old 01-14-2020, 01:57 AM   #24
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Life begins at 10PSI.
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Old 01-15-2020, 12:05 AM   #25
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It is definitely easier to fit FWD wheels, and there is a huge amount of selection in the aftermarket. I tend to aim at an offset of 0 when using spacers, FWD wheels and wide tires, never get there but can get quite close.
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