Is the speedo based off of the front or rear tires?

killerhurtalot · 10-13-2014, 09:34 PM

Looking to switch to a 245 or 235/35 square set-up and I was wondering if the speedo is based off of the front (since the stock is 215/40 tires) or the rear tires?

I heard that the reader is located in the transmission so it should be from the rear tires... can I get a confirmation or something?

BMWX1-35i · 10-19-2014, 10:07 PM

Rear tires

aaron1st · 10-19-2014, 10:15 PM

Quote:

Originally Posted by killerhurtalot

Looking to switch to a 245 or 235/35 square set-up and I was wondering if the speedo is based off of the front (since the stock is 215/40 tires) or the rear tires?

I heard that the reader is located in the transmission so it should be from the rear tires... can I get a confirmation or something?

Turn off traction/stability control, hit the gas, and find out!

10-13-2014, 09:34 PM	#1
killerhurtalot First Lieutenant 21 Rep 330 Posts Drives: 2011 135i DCT Join Date: Jan 2014 Location: WA iTrader: (0)	Is the speedo based off of the front or rear tires? Looking to switch to a 245 or 235/35 square set-up and I was wondering if the speedo is based off of the front (since the stock is 215/40 tires) or the rear tires? I heard that the reader is located in the transmission so it should be from the rear tires... can I get a confirmation or something? Last edited by killerhurtalot; 10-13-2014 at 10:30 PM..
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10-19-2014, 10:07 PM	#2
BMWX1-35i 2015 X1 35i XDrive with NAV 76 Rep 659 Posts Drives: 2015 X1 35i Join Date: Aug 2014 Location: East Coast iTrader: (2) Garage List 2015 X1 35i Xdrive [8.00]	Rear tires __________________ 2015 X1 35i XDrive Ultimate, NAV & Cold Weather Package MHD, FTP Motorsports Charge Pipe, Drop in K&N
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