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 Tires, Brakes and Suspension
 235/60-15 for 6.9?
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raueda1

USA
45 Posts

Posted - 06/20/2017 :  22:55:30  Show Profile  Reply with Quote
Seems like everybody making the 14" to 15" wheel upgrade on 6.9's goes to 225/65 or 225/60 15's. Yet I can't find a single reference to or even question about 235/60-15's. They're only fractionally bigger (diameter) than the OE 215/70-14's so miniscule speedo error. I must be missing something. Ride quality? Fender rubbing? Other? Thanks!

Dave

MattR

USA
93 Posts

Posted - 06/21/2017 :  13:50:30  Show Profile  Reply with Quote
quote:
Originally posted by raueda1

Seems like everybody making the 14" to 15" wheel upgrade on 6.9's goes to 225/65 or 225/60 15's. Yet I can't find a single reference to or even question about 235/60-15's. They're only fractionally bigger (diameter) than the OE 215/70-14's so miniscule speedo error. I must be missing something. Ride quality? Fender rubbing? Other? Thanks!

Dave


It's going to be nice this weekend. I'll check what size tires I'm running. I've 15" Penta's and Bundt's (the former being what I'm riding on currently).

----------------
1976 450SE 6.9
aka Frankenbenz
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mtrei

USA
3740 Posts

Posted - 06/21/2017 :  15:42:44  Show Profile  Visit mtrei's Homepage  Reply with Quote
The 225 width is already marginal on a 6.9. With 235 I'd expect rubbing would be a problem when turning at full lock, especially if you hit a bump in the process.
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S class

South Africa
951 Posts

Posted - 06/22/2017 :  03:07:00  Show Profile  Reply with Quote
235 is simply too wide to fit properly on a 7 inch wide rim. 215 (or max 225) is more appropriate.



116.036 - trusty rusty
116.036 - Rooikat
116.024 - the merc
116.028 - Penelope
116.032 - Esmeralda
126.037 - Scheckter
126.037
107.046



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raueda1

USA
45 Posts

Posted - 06/22/2017 :  11:47:28  Show Profile  Reply with Quote
quote:
Originally posted by S class

235 is simply too wide to fit properly on a 7 inch wide rim. 215 (or max 225) is more appropriate.

How come? Every tire size / rim size chart I've seen says 235/60-15's are good from 6.5-8.5" rims. Example: http://www.etmags.com/pdf_download_documents/tire_chart_2010.pdf

Lots of 'Vette and muscle car people apparently use 7" rims. It's easy to poke fun at them I guess, but they can't all be wrong. After all, the 6.9 really is a 70's muscle car.

Is this some specific MB or 6.9 thing?

Dave
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karra

Finland
856 Posts

Posted - 06/23/2017 :  04:55:58  Show Profile  Reply with Quote
I would say W116 might look a bit funny also. That size suits better to a bigger car like W140.

Mercedes has some specks for the rim and tyre width I guess. 7" wheels came with 215 tyres in 560 models. For 16" wheels; 500E and R129 had 8" rims with 225 tyres. E420 W124 had 7,5" rims with 215 tyres.

But, my old Chevy Tahoe had 265/70 wheels on 7" rims... of course the appearance is different and the high sidewall makes it possible. MB G uses 265 tyres on 8" rims.

Kari Pykäläinen

1971 300 SEL 6.3 #5581
1980 450 SEL 6.9 #7201
1987 560 SEC
1992 500 E
2000 G500

http://suomi.mercedes-benz-clubs.com/
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ethan45

5 Posts

Posted - 07/18/2017 :  23:54:23  Show Profile  Reply with Quote
Raueda1 which size of tyre did you end up with?

Karra we also have Chevy Tahoe we are rebuilding and will be fitting Centerline alloy wheels and some 33" tires.

Edited by - ethan45 on 07/18/2017 23:54:43
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raueda1

USA
45 Posts

Posted - 09/13/2017 :  20:45:04  Show Profile  Reply with Quote
quote:
Originally posted by ethan45

Raueda1 which size of tyre did you end up with?

Karra we also have Chevy Tahoe we are rebuilding and will be fitting Centerline alloy wheels and some 33" tires.

Sorry, missed your post... Ended up with Pirelli P600's in 235/60-15. They work great.

Dave

1977 450SEL 6.9, No.923
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