Thoughts on 21" wheels on CLS55
Will it greatly affect ride quality?
Will it throw by speedo out of whack?
Please let me know your opinions or experiences. Thanks!!
I pasted the same info for everyone to know and just incase you check this side more

The answer is no to both of your questions. The correct rim specs to tire diameter if done right will not give you problems
We are located in Miami,Fl and more then glad to give you a ride in any of the company cars with wheels to show you how cars ride with our wheels.
Its a matter of preference as tires in 21" become selective and $$
Here is a CLS550 on 21" Trident to give you an idea.
Enjoy!!




And with 20" Concord on the aggresive side:






