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      03-02-2017, 08:54 PM   #1
Eriphill
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'19 442M v 20' 405M

Hi all,

Wondering what the weight difference would be between my stock 19 inch 442M's vs a set of 20 inch 405M's? And the difference performance/comfort wise for anyone who has gone that route?
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      03-03-2017, 06:36 AM   #2
.BMW.
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OEM style 442:
F: 8x19" ET36, 13.4kg
R: 8.5x19" ET47, 13.6kg

OEM style 405:
F: 8x20" ET36, 10.9kg
R: 8.5x20" ET47, 10.9kg

That's 10.4 kg for four wheels. If you also change to non run-flat tires there will be additional weight savings.
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      03-04-2017, 05:19 PM   #3
Eriphill
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Quote:
Originally Posted by .BMW. View Post
OEM style 442:
F: 8x19" ET36, 13.4kg
R: 8.5x19" ET47, 13.6kg

OEM style 405:
F: 8x20" ET36, 10.9kg
R: 8.5x20" ET47, 10.9kg

That's 10.4 kg for four wheels. If you also change to non run-flat tires there will be additional weight savings.
Thanks!
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      06-12-2017, 02:28 AM   #4
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Ik had the 442M on with rft, and changed tot the 405M with normal tyres.
In total i saved 19,6 kgs.
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      06-12-2017, 09:59 AM   #5
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Quote:
Originally Posted by weytie View Post
Ik had the 442M on with rft, and changed tot the 405M with normal tyres.
In total i saved 19,6 kgs.
Did you notice much of a change in how the car handled?
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