245/40 vs 245/45/20

[DrDrama84]

My 20" wheels just arrived, waiting on new tpms, and will be ordering tires soon. Went square with 20x9.

I was set on Bridgestone Potenza re980as+ in 245/40/20... But Black Friday deals are popping up and wondering if anyone is on 245/45/20? The difference is 0.4", I can't imagine issues but anyone have experience?

Also looking at Falken G6 Pro Sport A/S

Thank you!

 

[Aka-none]

My 20" wheels just arrived, waiting on new tpms, and will be ordering tires soon. Went square with 20x9.

I was set on Bridgestone Potenza re980as+ in 245/40/20... But Black Friday deals are popping up and wondering if anyone is on 245/45/20? The difference is 0.4", I can't imagine issues but anyone have experience?

Also looking at Falken G6 Pro Sport A/S

Thank you!

I’d wonder about tire circumference as that can affect your speedometer

 

[DrDrama84]

I'm sure the speedo will get thrown off, my concern is more fitment/rubbing, but definitely a valid thought.

 

[socktucker]

Paging @037

 

[037]

Paging @037

Im generally a Gravity Dr but here goes…

Lucid does not leave a lot of extra room for things, jumping from 40 to 45 may fit, but it may also rub when turning or on a bump or any random spot.

There are many excellent tire options in stock size, if you want to mess around you can go 255/40/20 for more traction but I see only downside going 245/45.

 

[socktucker]

Im generally a Gravity Dr but here goes…

you'll have to do!

 

[DrDrama84]

Im generally a Gravity Dr but here goes…

Lucid does not leave a lot of extra room for things, jumping from 40 to 45 may fit, but it may also rub when turning or on a bump or any random spot.

There are many excellent tire options in stock size, if you want to mess around you can go 255/40/20 for more traction but I see only downside going 245/45.

Makes sense.
Thank you for your input!

 

[njg-agt]

I’d wonder about tire circumference as that can affect your speedometer

Even within the same nominal tire size, changing brands or models of tires can affect the tire circumference (and thus your speedometer)... same is true as a tire wears (new vs old).