GLK with 20"x9" Rims & 245/45/20 tires

Mar 15, 2011 | 05:51 PM

rchen2001

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AMG Styled 20"x9" Rims & 245/45/20 tires

Please help! I am replacing my roughed up stock 20" rims and 33k miles tires. As some of you probably noticed, the stock Scorpion has zero rim protection so my rims is kinda messed up. I might recondition them for $600 or just buy a new set of rims. After lot's of research I bought a set of Yokohama Parada Spec-X 245/45/20 tires. I know it's has built-in rim protection feature and plus it's 10mm wider, the hope here is to eliminate curb damage to rims.

Question 1) Will the 245/45/20 be a good fit for the stock 20" rims, given it's 10mm wider and about 3/8" taller?

Question 2) Ebay has this really nice 20" AMG styled rim for the GLK I am considering but the offset is 50 instead of stock rims' 45. Pls correct me if I am wrong, I am assuming the 50 offset will push the rim towards the struts by 5mm, this plus the 5mm from the tire (5mm wider per side) will push the tires 10mm towards the struts. Will this 10mm inwards cause any rubbing against the struts or anything?

Last edited by rchen2001; Mar 15, 2011 at 08:38 PM. Reason: Get better feedback & clarify more

Mar 16, 2011 | 10:39 PM

NYCGLK

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GLK 350 / Porsche 993

1)I was thinking of putting 255 as my next set, but front wheels are really close to the strut, seems like half an inch if not less.

2) I don't remember which way offset goes but if you are correct that can be fixed with a spacer I believe.

Ppl on this forum put 22 inch rims with 265 tires with no problem so gotta work.

Mar 17, 2011 | 01:31 AM

rchen2001

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Thanks NYCGLK. I read somewhere here the 20" x 9.5" OEM rim has an offset of 57 as opposed to 45 of the 20 x 8.5 so I think I might be wrong in that a 50 offset would actually push the wheel OUT towards the fender.

If so then a 9" wide wheel w/ a 50 offset would add 5m from offset, approx. 6mm (about 1/4") from the 1/2" wider 9" rims, plus 5mm from the 245 tire so wheels would be pushed out a total of 16mm for a wider stance, which is nice. Someone please check my calculations.

Don't want a 22", too costly and ultra low profile tires can't handle the potholes here in NYC as you know.

Mar 17, 2011 | 06:52 AM

NYCGLK

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GLK 350 / Porsche 993

http://www.tirerack.com/wheels/tech/...jsp?techid=101

I think were right first time, based on the link above positive offset moves hub outward which means your wheel would move inwards.

Keep in mind that 9.5 inch OEM wheel with 57 offset is for rear only and there is plenty of space in the back. I doubt that wheel would fit in front.

I hear you on the potholes, thankfully I was able to steer clear of them, but the roads are terrible

Last edited by NYCGLK; Mar 17, 2011 at 06:57 AM.

Mar 17, 2011 | 01:56 PM

rchen2001

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Thanks again

NYCGLK. I searched the old posts and it was you who listed those et57 vs et45 so gotta be right. I think I am set. here is the link for those Ebay 20" AMG knock-offs. At $739 + $130 S/H for a set of 4 rims I am extremely tempted to give it a try. Hope it won't crack on me lol

http://cgi.ebay.com/ebaymotors/20-ME...Q5fAccessories