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Speedo/odo performance from smaller wheels?

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Old Nov 18, 2025 | 08:44 AM
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Default Speedo/odo performance from smaller wheels?

Hi, folks! Hope you’re all doing well.

I’m about to put my winter wheels on my 2022 Signature model for our first winter together and I’m planning to use the 17 inch wheels and tires we had on our RAV4. I know this will work fine, but I’m wondering if the smaller circumference compared to the 19’s will affect the performance of the speedometer and odometer.

Anyone know?

Thanks!
 
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Old Nov 18, 2025 | 10:08 AM
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Yes and make not of a set speed now and after you install the 17. Then when you drive mentally compensate for the difference when adjusting your speed based on the speedometer reading. It is likely only about 1 MPH difference ???
 
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Old Nov 19, 2025 | 10:08 AM
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Thanks! I’ll make a note of how quickly the trees whoosh by!
cheers!
 
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Old Nov 19, 2025 | 02:47 PM
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Originally Posted by gymbreigh
Thanks! I’ll make a note of how quickly the trees whoosh by!
cheers!
Or better yet, compare the indicated speed to the GPS speed.
 
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Old Nov 19, 2025 | 04:59 PM
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Originally Posted by schmieg
Or better yet, compare the indicated speed to the GPS speed.
I was also gonna say this too. GPS speed is a big help.
 
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Old Nov 19, 2025 | 05:46 PM
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Its really not that complicated and relying on the GPS for 1-2 mph and always looking at it to adjust speed may be in one respect unsafe driving and while it does make for perfect speed adjustment is not really necessary . for 1-2 or even a 3mph difference. If you can do simple subtraction a 2 or addition while looking or glancing at a speedometer maybe, you should be driving? LOL Beside there are charts that can plot out the exact difference. Thank goodness you all are not trying to determine the MPG by the gear you are in and the tachometer reading and do that in the 1/4 mile in less the 8 seconds ... LOL

Remember that this is temporary as the OP indicated.
 
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Old Nov 19, 2025 | 08:29 PM
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Originally Posted by Callisto
Its really not that complicated and relying on the GPS for 1-2 mph and always looking at it to adjust speed may be in one respect unsafe driving and while it does make for perfect speed adjustment is not really necessary . for 1-2 or even a 3mph difference. If you can do simple subtraction a 2 or addition while looking or glancing at a speedometer maybe, you should be driving? LOL Beside there are charts that can plot out the exact difference. Thank goodness you all are not trying to determine the MPG by the gear you are in and the tachometer reading and do that in the 1/4 mile in less the 8 seconds ... LOL

Remember that this is temporary as the OP indicated.
Heck, I don't worry about speed variances like that in my driving, but I do try to keep at no more than 5 mph over the limit most of the time.
 
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Old Nov 19, 2025 | 09:03 PM
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Originally Posted by Callisto
Its really not that complicated and relying on the GPS for 1-2 mph and always looking at it to adjust speed may be in one respect unsafe driving and while it does make for perfect speed adjustment is not really necessary . for 1-2 or even a 3mph difference. If you can do simple subtraction a 2 or addition while looking or glancing at a speedometer maybe, you should be driving? LOL Beside there are charts that can plot out the exact difference. Thank goodness you all are not trying to determine the MPG by the gear you are in and the tachometer reading and do that in the 1/4 mile in less the 8 seconds ... LOL

Remember that this is temporary as the OP indicated.
I definitely wouldn't have it up all the time, but I'd drive with the GPS speed once or twice just to see the inconsistancy and make a mental note lol.
 

Last edited by Alexmed2002; Nov 20, 2025 at 12:06 AM.
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Old Nov 19, 2025 | 11:14 PM
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Originally Posted by schmieg
Heck, I don't worry about speed variances like that in my driving, but I do try to keep at no more than 5 mph over the limit most of the time.
Originally Posted by Alexmed2002
I definitely would have it up all the time, but I'd drive with the GPS speed once or twice just to see the inconsistancy and make a mental note lol.
I guess I am use to changing my wheels so often I just know what the error value is .. so ya maybe for some it is better to use the nav mapping gps to drive the speed limit.
 
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Old Nov 20, 2025 | 12:07 AM
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Originally Posted by Callisto
I guess I am use to changing my wheels so often I just know what the error value is .. so ya maybe for some it is better to use the nav mapping gps to drive the speed limit.
Sorry I made a typo. I meant to say I wouldn't have it up all the time lmao. Just to check the speed difference on the guage and make a note for the future.
 
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