SL/R230: Will these tires mess up my ride??
Thread Starter
Newbie
Joined: Oct 2010
Posts: 13
Likes: 0
From: TX
'06 SL500
Will these tires mess up my ride??
I just dropped my car off at the shop for some mods including installing some lowering links. My installer offered to swap me his 20" AMG reps for my 18" stocks for $1600.
His SL55 is slammed and the tires are new. When inspecting the tires his fronts/rears were:
245/30/20
275/30/20
Shouldn't the aspect ratio of the fronts be at least 35? I asked him and he just said it's fine
Should I be concerned with handling issues or anything?
His SL55 is slammed and the tires are new. When inspecting the tires his fronts/rears were:
245/30/20
275/30/20
Shouldn't the aspect ratio of the fronts be at least 35? I asked him and he just said it's fine
Should I be concerned with handling issues or anything?
Super Member
Joined: Dec 2003
Posts: 663
Likes: 6
The aspect ratio on the 19" factory tires is 35. If you increase the wheel diameter to 20", the aspect ratio must decrease to maintain the same rolling circumference. Without being overly scientific, 30 should be about right. As for the tire size, the 18" and 19" are 255 and 285. Perhaps he went a bit smaller to clear the fender.
MBWorld Fanatic!
Joined: Apr 2006
Posts: 8,137
Likes: 26
From: Maryland
Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Not only that, but if his car was "slammed" as you put it, the tires will no doubt have uneven wear. You state the tires are new, but how new? New, as in 0 miles new? Or new, as in, the 'look' new.
Member
Joined: Dec 2008
Posts: 244
Likes: 1
From: Louisiana
2005 SL500
In a similar vein as to one poster's question, I would ask why is the installer going from 20's back to 18's. I would wonder if he has/had problems with the 20" reps and is trying to dump them on someone else. Kind of like an electrician getting rid of a "great" voltmeter for a less expensive one. Suspicious.
-ROOK
-ROOK
Thread Starter
Newbie
Joined: Oct 2010
Posts: 13
Likes: 0
From: TX
'06 SL500
In a similar vein as to one poster's question, I would ask why is the installer going from 20's back to 18's. I would wonder if he has/had problems with the 20" reps and is trying to dump them on someone else. Kind of like an electrician getting rid of a "great" voltmeter for a less expensive one. Suspicious.
-ROOK
-ROOK
http://www.avantgardewheels.com/328.html
but I cannot find a site that sells these replicas in 20's.
