Will G65 21" wheels mess with speedo on G63
Thread Starter
Senior Member
Joined: Apr 2017
Posts: 288
Likes: 81
Mercedes G63
Will G65 21" wheels mess with speedo on G63
Does anyone know if putting the 21 inch G65 wheels and tires on a G63 running 20 inch rims, messes with the speedometer? I know the rubber height might make up for the difference in rim diameter, but wasn't sure if it is right on, or would need a speedometer calibration through the computer.
I really want the 21 inch G65 polished chrome rims. Or something equivalent that looks as nice. IF anyone has any nice wheel ideas that are comparable to the G65 chrome wheel. Please let me know.
I really want the 21 inch G65 polished chrome rims. Or something equivalent that looks as nice. IF anyone has any nice wheel ideas that are comparable to the G65 chrome wheel. Please let me know.
Member
Joined: Dec 2010
Posts: 140
Likes: 30
From: Houston, TX
Lifted G500, GT-S, track Cooper S
It will depend entirely on tire size--if you check which tires you intend to purchase on tirerack, they will give you the actual outside diameter for that brand and type of tire in your specified size under the specs tab to compare to your current set. Different brands/types of tires can vary a few percent even with the same listed size, so I would check.
I am running 33" tires on my truck and have tried multiple times to find the location in STAR to change the speedo/odo to no avail. I have changed the transmission and transfer case to adjust the traction control and trans as close as possible, but it still isn't perfect. If anyone knows step by step how to do the speedo I am interested to hear as well.
I am running 33" tires on my truck and have tried multiple times to find the location in STAR to change the speedo/odo to no avail. I have changed the transmission and transfer case to adjust the traction control and trans as close as possible, but it still isn't perfect. If anyone knows step by step how to do the speedo I am interested to hear as well.
Thread Starter
Senior Member
Joined: Apr 2017
Posts: 288
Likes: 81
Mercedes G63
It will depend entirely on tire size--if you check which tires you intend to purchase on tirerack, they will give you the actual outside diameter for that brand and type of tire in your specified size under the specs tab to compare to your current set. Different brands/types of tires can vary a few percent even with the same listed size, so I would check.
I am running 33" tires on my truck and have tried multiple times to find the location in STAR to change the speedo/odo to no avail. I have changed the transmission and transfer case to adjust the traction control and trans as close as possible, but it still isn't perfect. If anyone knows step by step how to do the speedo I am interested to hear as well.
I am running 33" tires on my truck and have tried multiple times to find the location in STAR to change the speedo/odo to no avail. I have changed the transmission and transfer case to adjust the traction control and trans as close as possible, but it still isn't perfect. If anyone knows step by step how to do the speedo I am interested to hear as well.
Junior Member
Joined: Nov 2015
Posts: 17
Likes: 1
From: ZH CH
2016 G500
Does anyone know if putting the 21 inch G65 wheels and tires on a G63 running 20 inch rims, messes with the speedometer? I know the rubber height might make up for the difference in rim diameter, but wasn't sure if it is right on, or would need a speedometer calibration through the computer.
I really want the 21 inch G65 polished chrome rims. Or something equivalent that looks as nice. IF anyone has any nice wheel ideas that are comparable to the G65 chrome wheel. Please let me know.
I really want the 21 inch G65 polished chrome rims. Or something equivalent that looks as nice. IF anyone has any nice wheel ideas that are comparable to the G65 chrome wheel. Please let me know.
https://www.tacomaworld.com/tirecalc
Last edited by GKID; May 5, 2017 at 12:12 AM.
Thread Starter
Senior Member
Joined: Apr 2017
Posts: 288
Likes: 81
Mercedes G63
I use below site because i tend to chage the tire size on most my cars as i did on my '16 G500 - now running 285/55R19 and speedo is bang on as opposed to showing highere speed than actual
https://www.tacomaworld.com/tirecalc
https://www.tacomaworld.com/tirecalc
Thanks
