Going from 16" to 19" questions.

sy2767 · 01-25-2011, 09:53 PM

I will be up sizing the wheels on my 325i from stock run-flat tired 16" to non run-flat tired 19". How much off will my speedo be? Fuel mileage? performance? Any thing else i should know before i jump into this?

sy2767 · 01-26-2011, 01:18 AM

No one..........?

skinrock · 01-26-2011, 01:40 AM

Well there is a calculator right at the top of this forum to answer your speedometer question...

It depends on the profile of the stocks and new tires. It is technically possible to go from 16" to 19" and not actually change diameter, and therefore not affect the speedometer.

Mileage and performance could be hindered if the new setup weighs more. Obviously heavier wheels require more power to get them rolling.

VMRWheels · 01-26-2011, 01:03 PM

As long as you run the proper diameter tires you will still be within 3% of the OE tires. I personally upgraded from 16" wheels to 19" and I like the crisp response to the steering that I gained. With the thinner and wider tires I can definitely feel the difference in lateral grip during higher speed corners.

-Charles@VMRWheels

01-25-2011, 09:53 PM	#1
sy2767 Major 150 Rep 1,133 Posts Drives: 2013 x5 Join Date: May 2010 Location: manitoba iTrader: (1)	Going from 16" to 19" questions. I will be up sizing the wheels on my 325i from stock run-flat tired 16" to non run-flat tired 19". How much off will my speedo be? Fuel mileage? performance? Any thing else i should know before i jump into this?
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01-26-2011, 01:18 AM	#2
sy2767 Major 150 Rep 1,133 Posts Drives: 2013 x5 Join Date: May 2010 Location: manitoba iTrader: (1)	No one..........?
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01-26-2011, 01:40 AM	#3
skinrock Agent Smith 281 Rep 3,344 Posts Drives: 2016 i8 Join Date: Jan 2011 Location: The Matrix iTrader: (9) Garage List 2016 BMW i8 [10.00]	Well there is a calculator right at the top of this forum to answer your speedometer question... It depends on the profile of the stocks and new tires. It is technically possible to go from 16" to 19" and not actually change diameter, and therefore not affect the speedometer. Mileage and performance could be hindered if the new setup weighs more. Obviously heavier wheels require more power to get them rolling. __________________ The i8 needs a V8 amirite?
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01-26-2011, 01:03 PM	#4
VMRWheels BimmerPost Supporting Vendor 2130 Rep 25,972 Posts Drives: BMW Join Date: Jun 2007 Location: Anaheim, CA iTrader: (4) Garage List 2013 BMW M3 [10.00] 2015 BMW M4 [0.00] 2013 BMW F30 [0.00] 2014 BMW F22 [0.00] 2013 BMW F06 [0.00]	As long as you run the proper diameter tires you will still be within 3% of the OE tires. I personally upgraded from 16" wheels to 19" and I like the crisp response to the steering that I gained. With the thinner and wider tires I can definitely feel the difference in lateral grip during higher speed corners. -Charles@VMRWheels __________________ VMR\|Wheels \| 714.442.7916 \| sales@velocitymotoring.com \| www.velocitymotoring.com \| facebook \| flickr \| Instagram
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