Tire Fitment
Member
Joined: Sep 2005
Posts: 224
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From: Cary, IL
2003 CL55 Kompressor Horizon Blue Metallic
Yes, the Renntech offsets are ET 39 in front with ET52 in back with 19x9's in front and 19x10's in back. You will need to keep the stock tire height the same or lower.
The Renntech promo CL55 had 255/25 on front with 295/30 in back on 19x9/19x10. However, that works out to roughly a 26" tire (the stock 275 on 18" comes in at around 26.7").
The Renntech offset effectively pushes the fronts outward for suspension clearance, and pulls the back in for fender clearance.
I'm guessing you have the AMG 18x9 in back (has an ET44). For reference, you can bolt this on the front and see that the inside is tight to the suspension but there is fender room that can be used if the rim was further out (lower ET number). I don't recommend driving the car like that though. Might work, I just haven't driven it that way.
I have ET 36 in front, and I believe I can go as high as a 26" tall 275 in front. But I wouldn't advise others to try it.
You can google "Renntech wheels.pdf" and find sites that have Renntech's pdf file posted that shows the offsets by rim and car model.
The Renntech promo CL55 had 255/25 on front with 295/30 in back on 19x9/19x10. However, that works out to roughly a 26" tire (the stock 275 on 18" comes in at around 26.7").
The Renntech offset effectively pushes the fronts outward for suspension clearance, and pulls the back in for fender clearance.
I'm guessing you have the AMG 18x9 in back (has an ET44). For reference, you can bolt this on the front and see that the inside is tight to the suspension but there is fender room that can be used if the rim was further out (lower ET number). I don't recommend driving the car like that though. Might work, I just haven't driven it that way.
I have ET 36 in front, and I believe I can go as high as a 26" tall 275 in front. But I wouldn't advise others to try it.
You can google "Renntech wheels.pdf" and find sites that have Renntech's pdf file posted that shows the offsets by rim and car model.
Last edited by mclarenm8d; Jan 19, 2008 at 11:39 AM.
Senior Member
Joined: Oct 2007
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From: Davis
You can even go wider in the back if you really want to. I would say 10.5 is about the limit though without doing some bigger changes. I have 20x10.5 with 305/25s for the rear tires on a 2004 CL55, car is mechanically lowered an inch. Fronts I believe are 20x9. At high speed when the car lowers itself further, I do get very sporadic rubbing (every 10 - 20 miles) from the rear tires. Raising the car with the dash button eliminates the rubbing completely.
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Joined: Aug 2003
Posts: 8,882
Likes: 1,214
From: In my garage
E55, GLS450, GL63, GLE350
You can even go wider in the back if you really want to. I would say 10.5 is about the limit though without doing some bigger changes. I have 20x10.5 with 305/25s for the rear tires on a 2004 CL55, car is mechanically lowered an inch. Fronts I believe are 20x9. At high speed when the car lowers itself further, I do get very sporadic rubbing (every 10 - 20 miles) from the rear tires. Raising the car with the dash button eliminates the rubbing completely.
Senior Member
Joined: Dec 2007
Posts: 472
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From: Dago, CA
2003 cl55 (sold)
You can even go wider in the back if you really want to. I would say 10.5 is about the limit though without doing some bigger changes. I have 20x10.5 with 305/25s for the rear tires on a 2004 CL55, car is mechanically lowered an inch. Fronts I believe are 20x9. At high speed when the car lowers itself further, I do get very sporadic rubbing (every 10 - 20 miles) from the rear tires. Raising the car with the dash button eliminates the rubbing completely.
Thread Starter
Newbie
Joined: Nov 2006
Posts: 14
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From: Austin, TX
CLK430 / CL55 AMG
I decided on getting 20x8.5 with 255/35's and 20x9.5 285/30 in the back. I had a little trepidation in getting anything bigger because of the rubbing but I will post a pic once I get these wheels and tire on the car!
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Senior Member
Joined: Oct 2007
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From: Davis
Wow... I don't know how you fit 20X10.5 in the rear
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Super Member
Joined: Oct 2007
Posts: 741
Likes: 6
From: SIN CITY
CL65
was thinking on going with a 10.5 wheel in the the back of my cl55, nitto just came out with a 305/35/20 drag radial. i run a 275/30 on there now with a 1/4 inch spacer with no probs rubbing.
Thread Starter
Newbie
Joined: Nov 2006
Posts: 14
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From: Austin, TX
CLK430 / CL55 AMG
Final Decision!
Here is my final wheels. I decided to go with 19's to avoid rubbing. It still looks sporty enough and has a good amount of sidewall showing. Let me know what you all think! 
