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19x9 vs 19x9.5 daily driving efficiency loss.

Watts_Up

Active Member
Mar 4, 2019
3,712
2,689
In a galaxy far, far away
Looking at getting the Titan 7 TS-5 or the Speedwell RS-1.
Wondering what the efficiency hit is for people driving on 9.5s vs 9 vs 8.5.
Thanks!

I plan also getting wider 19" tires (255 mm), mostly to protect my rims from curb rash, but also provide softer ride from my experience.

I'm also interested about range loss, but I think the major factor is the speed.

255 mm = 10"
245 mm = 9.65"
235 mm = 9.25"
 

Rpgonzalez

Member
Oct 10, 2015
32
10
Long beach
Looking at getting the Titan 7 TS-5 or the Speedwell RS-1. Wondering what the efficiency hit is for people driving on 9.5s vs 9 vs 8.5. Thanks!
did you decide on anything? Wondering if you have any data to share. I would have thought that going up half an inch wouldn't affect range that much. I'm pretty sure tire sizes are what matters most.
 

untilcomplete

Member
Apr 1, 2017
349
278
East Coast
did you decide on anything? Wondering if you have any data to share. I would have thought that going up half an inch wouldn't affect range that much. I'm pretty sure tire sizes are what matters most.
Ended up going with titan 7 ts-5 19x9 245/40r19. They’ve been sitting in my garage for a month now waiting for warmer weather.
 
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gcmak

Member
Jul 26, 2019
208
180
San Francisco
Been waiting for the 19x9 T-S5 wheels myself for some time (delayed production). Was planning to wrap 245/40/19 tires. Depending on the tire compound as well as design the width could vary somewhat greatly as well as the rolling resistance. I have a suspicion than the Pilot Super Sports might protect the rim the most out of most normal street tires because the tread width is marginally wider than most other tires in the same size and performance category - 1/2" wider than the newer PS4S.

I got my first flat with the OEM 20" wheels - which was a $440 replacement from Tesla so I think downsizing is the right way to go...but I am having second thoughts...the 20" size just looks amazing on the car. Pay to play...sigh.

Would love to see some photos of a Model 3 with these wheels - very few examples seen online.
 

untilcomplete

Member
Apr 1, 2017
349
278
East Coast
FB3817AA-1908-4FC4-BFAE-7F69964A7AC6.jpeg
Mock up until it gets warmer.
 
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untilcomplete

Member
Apr 1, 2017
349
278
East Coast
EDIT: sorry I read your response above. Are you stock height?
Wow that's going to be what I want. Thanks!

Dang looks good. Was this 19x9? I'm thinking bronze too and probably those same tires - Michelin A/S 3+ - .... did you get them in 245/40/19?
Went with the falken fk510 since the Michelin’s were OOS at my tire rack location. I am stock height but it might look lower than it is since my current wheels are 18s.
 
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gcmak

Member
Jul 26, 2019
208
180
San Francisco
I am waiting on Project Kics Iconix lugs before I can mount them...but for anyone curious...
These are the 20" staggered set from Titan7.
20x8.5 et35 and 20x10 et40
Wrapped in Michelin A/S 3+ 235/35/20 and 275/30/20.
 

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gcmak

Member
Jul 26, 2019
208
180
San Francisco
Mounted and love them. Spent a brief time on track at Laguna but with all seasons it's definitely not the right tire for this really heavy car...not to mention the car absolutely needs pads and high temp brake fluid. :)
 

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