GLC Class (X253) Produced 2016-2022

tire size on 21" GLC43 AMG wheels?

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Old 11-02-2016, 07:36 PM
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2017 GLC 43 AMG, 2013 Boxster
tire size on 21" GLC43 AMG wheels?

Can anyone who has the 21" wheels tell me what is the tire size used on both front and back?
Old 11-02-2016, 11:10 PM
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2017 Mercedes-AMG GLC43
I made this spreadsheet comparing the various tire/wheel options. It should answer your question. (And then some.)

For the GLC43, each pair of rows represents the front (1st row) and back (2nd row) tires.

So, to answer your question:

Front 255/40 R21
Rear 285/35 R21


Last edited by FrostyZoob; 11-03-2016 at 02:41 PM. Reason: Fixed mistyped tire profile.
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Old 11-03-2016, 08:15 AM
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John Deeres, but wife has GLC43
Fronts are 255/40 R21 (as shown in Frosty's spreadsheet)
Old 11-03-2016, 10:05 AM
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What I find interesting is how neither size for the staggered 21" setup have tires with the MO marking on them. I can see them with BMW oem markings but not Mercedes. It will be interesting to see what is actually on them.
Old 09-07-2022, 10:17 AM
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2019 GLC43 AMG
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Originally Posted by FrostyZoob
I made this spreadsheet comparing the various tire/wheel options. It should answer your question. (And then some.)

For the GLC43, each pair of rows represents the front (1st row) and back (2nd row) tires.

So, to answer your question:

Front 255/40 R21
Rear 285/35 R21

Can you go up a size in tire on 2019 GLC 43 AMG. I would like to to go 265/40/21 on front and 295/35/21 on rear. It seems rears are fine but fronts I'm worried about clearance on front suspension. Secondly if I have to stay with stock size on front can I go up size in rear or will that jack up transfer case etc?????

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