AsianR350

I just bought brand new 20" OEM MB wheels P/N:A251 401 22 02 for $1100 Plus $120 shipping charge and I need opinion what best tire to get. (summer or all season).

Thanks in advance,

Here are the pics

dewdaltz

I just replaced mine a month ago from Pirelli Assimetrico (not happy) to Conti-Extreme DWS. All I can say is "AWESOME" - quite, smooth, good in cornering. I mean, what can I say. Check tire rack reviews. My opinion.

claimweb

Continental SC2 .
The best

fstshrk

I hope you enjoy the ride with the 20inch tires. When we were shopping for an R, the cars with 18,19 inch tires rode very harshly over rough surfaces.

AsianR350

I have 18" standard tires/rims and I feel that my 08 R is too floating and body rolls on and off clover exit at certain speed.

I have seen people who have 20" wheels on their R's in this forum had no complaints on the harsh ride except 22" wheels.

C/P:
put 20" brabus replica wheels on mine.

I like the ride MUCH better than the stock 18", as it's removed some of the flex from the higher profile sidewall of the stock tires, so the car feels more stable at high speed, especially on twisties. But the ride remains very comfortable. I wish I had gone with a little larger tire to eat up some of the wheel gap

rollsf

If I live in NY with all the pot holes and rough roads, I would not want 20" rims.

fstshrk

Going from 18inches to 20inches is not going to cure body roll. Suspension mods will.

You may want to invest in a good book on race car setup like

Tune to Win: The art and science of race car development and tuning [Paperback]
Carroll Smith

if you want to understand how to setup suspensions. Not blowing smoke here, I used to race SCCA/NASA and BMWCCA. By going to smaller sidewall in a tire, you are going to get a harsher ride, a heavier wheel/tire size and most likely a worse handling car. On top of this your acceleration and deceleration is going to suffer due to the larger inertia of the heavier wheel/tire combination.

AsianR350

Yes, I hear you loud and clear what I will suffer in riding comfortable dept. and a few others.

2011 R class comes standard with 19" wheels and 20" rims are optional.

fstshrk

And probably an adjusted suspension with different spring rates/shock settings

AsianR350

I was at the dealer today and the bottom control panel did not have push switches suspension "Sport" or "Comfort". So those R's that I have looked did not have air suspension.(Air bladder to lower or raise up)

fstshrk

The factory can change the suspension by going with a different spring rate or progressive rate springs and different compression/rebound settings on the shocks. Normally when a manufacturer changes the standard tire size on a car, they will adjust to compensate. The floatiness of the ride you sense in your R could be fixed by adjusting the rebound rate of the shock. Not sure if anyone makes adjustable shocks for the R.

AsianR350

Just got the 20" OE Mercedes Alanz rims today by Fed-Ex, I could not believe it weights only 33 lbs. for 20" rim compares with others (35+ Lbs). (Rims made in Italy).

20" OZ Canyon ST rim weights at 35.3 Lbs.

AsianR350

Still in process looking for TPMS sensors (found online $72.00 versus $185.00 from stealer) and tires.

Here are the teasing pics. before and after pre test.

BallJack

Looks nice. Can't wait to see how it looks like mounted. I wonder if you can swap the OE center cap with the new ones. Are you going to?

AsianR350

Yes, both rims are Mercedes OEM rims and have same center's cap dimension.
I am not so sure which one to put it on the new rim.

Need your opinion on this.

BallJack

Personally, I would swap out the cap from the 18" to the new one - but that's my personal preference. Either way, those wheels would look good. They have the three-pointed star to show.

bensitto

All silver looks cleaner. Keep the new center caps.
What are you doing for suspension, planning to drop it a little?

AsianR350

I had asked my dealer to lower with H&R springs and lower the rear by STAR but the mechanic foreman refused to do it for safety reason and void warranty on suspension components.

I checked near by import auto shop but they do not STAR Diag. computer to lower the rear.

kennyjr748

any pictures of the new wheels mounted on the car?

rosswell

You don't need to wait for pictures. Check out youtube video "R63 @ milan" - it has the R63 with those wheels mounted. Very nice. Good choice - and food for thought for mine too.

http://www.youtube.com/watch?v=Dd55K3aiDeo

claimweb

Where did you buy them from ? I'm searching too for winter season here in Italy.
Thanks ...

AsianR350

After 6 months searching for Rims, found them on ebay.

kennyjr748

Thanks Rosswell for the link...

BallJack

Hi AsianR350,
I'm finally getting ready to install my 20" rim and about to get new tires. Are you happy with the tires you got for your wheels? Also, did you just reuse the bolts/nuts or did you have to replace those too? Thanks.

AsianR350

I am very happy with what I got. Handling is much better than 18" wheels.
Yes, My local Mercedes dealer reused the bolts.
Now, I am having18" wheels for winter and will change back 20" wheels soon.

BallJack

Cool. Thanks for the quick response.