2017 18" versus 2019 20" wheels

Newbie here. Appreciate the help in advance and patience for asking a question that has probably been asked a 1000x. Looking at swapping out 18" oem steel wheels on 2017 sr5 with 2019 oem aluminum wheels. I had Toyota check the compatibility of the tmps sensors. The 2017 are 40 degree; the 2019 are 20 degree. I was told they can be reprogrammed. Is this true? And other than the obvious size differences is there anything else to be concerned with? Thx

 

The 20" will ride a little rougher. Can't comment on the programming.

 

Welcome from NY.
Where are you located?
Yes they can be reprogrammed.
The steel rim sensors will not fit on aluminum rims.

 

I'm in Maine.

 

Thx. Just the info I was looking for. Is it noticeably different?

 

I would not go with 20" wheels unless this was a 2wd that I was lowering and setting up for performance driving. For anything else, 18" or some would say 17" are the way to go. More side wall for better ride and less expensive.

 

20 inch wheels are fine for normal daily driving.
I have yet to see anyone here reprogram TPMs at home with techstream, I have not been able to do it myself either, you may have to leave that one to dealer.

 

Yes 20's are fine but 18's are better.

Now if your truck came with 20's, I don't know that I would replace them just because but I sure as hell wouldn't go from 18's to 20's like the OP is considering.

 

Regarding street driving. Why are 18” “better”?
There is plenty of side wall on a tire this size for ordinary driving.

 

There is still more tire on an 18” over a 20”. Having had two trucks with 20’s the 18’s ride better, are easier to keep balanced, and are less expensive.

20’s only advantage IMO is they look better.

 

More side wall = more comfortable ride. Its that simple and it applies to both street and offroad driving. The only advantage to 20" is the shorter side wall will handle corners better but this is a truck, not a sports car.

Yes, that is a matter of opinion. I don't think 20's look good on Tundra's at all. I do think there is such a thing as too much side wall (for a street truck anyway) but unless you are going 35" or larger, the 20's have too little sidewall IMO.

So to sum it up...

Fact = 18" wheels will provide a more comfortable ride (on and off road) then a 20" wheel (assuming the tire's OAL size is the same)
Fact = 18" tires cost less then 20's (again, same size/type/brand apples to apples comparison)

Opinion = Which one is "good enough"
Opinion = Which one looks better

 

Thanks for all the replies. I believe I will pass on these 20"