SL/R230: INCREASED TOTAL TYRE/WHEEL DIAMETER?
02-22-2015, 02:12 PM
#1
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INCREASED TOTAL TYRE/WHEEL DIAMETER?
I would really like to increase the diameter of my tyres.
I want to go from 305/25r20 to 305/30r20 this will put me about 30mm over the stock total diameter.
My question is not regarding fitment as I can deal with that. The question is will this cause any other issues with the car other than the speedo accuracy?
The black series uses 325/30r20 but that was from the factory so I don't know what else they would have changed to accommodate the increase.
I want to go from 305/25r20 to 305/30r20 this will put me about 30mm over the stock total diameter.
My question is not regarding fitment as I can deal with that. The question is will this cause any other issues with the car other than the speedo accuracy?
The black series uses 325/30r20 but that was from the factory so I don't know what else they would have changed to accommodate the increase.
07-29-2015, 04:33 PM
#2
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SL65 AMG, X5-4.8i M-Sport, 530D, 528i
If you just select similar increase in front tires so the circumstance is the same, no problem (if you as you say know there is no problems with needed space). If there is to much difference between front and rear tires circumstances, you'll get ABS warning light and the abs will disable. I also run 305/25-20 rear, and there is not much clearances, but I have the car lowered with a Renntech digital Module.
