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Discussion Starter · #1 ·
I have seen posts saying a stock 19 inch front wheel with Goodyear 3R 235 (0r 245) 35 fronts and a 305 30 20 Goodyear 3R rears ( 3R Not made in 35 aspect )
will not make the computer shut the car down at 35 mph due to not enough overall diameter between the front and rear tires
My tire shop says the chart shows the 305 30 20 is NOT tall enough and will freak out the computer
Normally I use a 285 35 20 rear but cannot buy one due to shortage
Hoosier has the correct rear tire but I want to stick with 3 R's
 

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2019 600LT
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I currently run goodyear 3r - 245/35/19 fronts and 305/30/20 rears and had no issue on track. As people have mentioned already, on full lock there is some minor rubbing so I will likely change fronts to 235/35/19 when they become available again. 305/30/20 is smaller than stock in the rear but it hasn't given my car any computer/ecu errors. With 3r I have tires set at "trofeo R"
 

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Discussion Starter · #3 ·
I currently run goodyear 3r - 245/35/19 fronts and 305/30/20 rears and had no issue on track. As people have mentioned already, on full lock there is some minor rubbing so I will likely change fronts to 235/35/19 when they become available again. 305/30/20 is smaller than stock in the rear but it hasn't given my car any computer/ecu errors. With 3r I have tires set at "trofeo R"
Interesting
Knew I could change tire setting on my 12-C but have not noticed how to change tire setting on my 2019 600 LT
Will check it out tomorrow
 

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Discussion Starter · #4 ·
I currently run goodyear 3r - 245/35/19 fronts and 305/30/20 rears and had no issue on track. As people have mentioned already, on full lock there is some minor rubbing so I will likely change fronts to 235/35/19 when they become available again. 305/30/20 is smaller than stock in the rear but it hasn't given my car any computer/ecu errors. With 3r I have tires set at "trofeo R"
OK I found on a sub menu that I can designate the Torfeo R which you say will allow use of a Goodyear 3R 305 30 20 which does not appear to have adequate overall circumstance to not freak out the ECU like a 35 aspect tire would
 

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Discussion Starter · #6 ·
Thanks
 

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2019 McLaren 600LT Chicane Effect
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Have gone through 3 sets of GY SC 3R's in 235/35-19 and 305/30-20's on stock wheels with no issues anywhere. Only issue I currently have is they have been out of stock for months...
 

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Discussion Starter · #8 ·
Have gone through 3 sets of GY SC 3R's in 235/35-19 and 305/30-20's on stock wheels with no issues anywhere. Only issue I currently have is they have been out of stock for months...
Vorias Thanks
Do you also set the tire submenu to Torfeo R ?
Actually my menu offers just front tire Torfeo R but i assume it calibrates it for the rear as well
 
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