ST18858505114SYHPZ2355523555B
$2,795.00 $2,795.00
If efficiency and economy are your goal, the TST 18-inch wheel and tire package is designed around exactly that mission. Downsizing from the factory 19x9.5" Model Y wheel to the 18x8.5" TST reduces both wheel mass and tire frontal area while maintaining Tesla-specific fitment.
At approximately 23.6 lbs per wheel, the TST saves approximately 7.6 lbs per wheel versus the referenced factory 19-inch setup, for approximately 30.4 lbs of wheel-weight reduction per vehicle. The narrower 18-inch tire also reduces frontal area compared with the wider factory tire, supporting a more efficiency-focused setup.
Ride comfort is also improved by the additional tire sidewall available with an 18-inch wheel. The taller sidewall provides more cushioning over rough pavement and potholes while helping protect the wheel against curb contact compared with larger-diameter, lower-profile wheel and tire combinations.
The TST uses an 18x8.5" square fitment at all four corners with two available tire-size paths. Choose the tire size that best matches your priorities for efficiency, comfort, handling, traction and wheel protection.
Tire availability varies by size and current inventory.
235/55R18 vs. 245/50R18
Why 245/50R18?
Why 245/50R18?
Why 235/55R18?
Why 235/55R18?
Why 245/50R18?
Why 235/55R18?
The TST 18x8.5" wheel is one inch smaller in diameter and one inch narrower than the referenced factory 19x9.5" Model Y wheel. The reduced wheel mass and narrower tire footprint are designed to support efficiency-focused driving.
The TST uses Flow Forged construction to combine reduced weight with the strength required for Tesla Model Y applications. At approximately 23.6 lbs per wheel, the design reduces unsprung and rotational mass compared with the referenced factory 19-inch setup.
Compared with the referenced factory 19-inch tire setup, the narrower 18-inch package reduces tire frontal area. Reduced frontal area can help lower aerodynamic resistance around the wheel and tire assembly, supporting the efficiency-focused purpose of the package.
Downsizing to an 18-inch wheel provides room for a taller tire sidewall. The additional sidewall helps absorb road impacts, improves cushioning over rough pavement and potholes, and provides more protection for the wheel than a lower-profile tire.
TST wheels are manufactured using a Flow Forged process and tested to JWL, VIA, SAE J2530 and TÜV standards.
The 18x8.5" square setup uses the same wheel and tire size at all four corners, allowing conventional front-to-rear tire rotation. Regular rotation can help promote more even tire wear and maximize usable tire life.
The TST is an efficiency- and comfort-focused alternative to the factory Tesla Model Y wheel lineup, including larger 19-inch, 20-inch and 21-inch wheel and tire combinations. View our Tesla Model Y Wheel Guide.
Shipping is calculated at Checkout.
Shipping & Handling charges subject to change without prior notification. PLEASE NOTE THAT INTERNATIONAL SHIPMENTS ARE SUBJECT TO CUSTOMS TAXES/DUTIES, AS CHARGED BY YOUR COUNTRY (THERE ARE NO U.S. CUSTOMS FEES). INTERNATIONAL CUSTOMERS ARE RESPONSIBLE FOR PAYMENT OF THESE FEES. Due to service availability, some international orders may need to be sent to the nearest international airport.
Can I use my Aero Covers / Hubcaps on the 18" TST?
No, the Aero Covers / Hubcaps only fit on your factory wheels.
Do your TST wheels fit my factory center caps?
Yes, 18x8.5" TST wheels fit your factory Tesla center caps. They also fit your factory TPMS and your factory lug nuts. In other words, there's no need to use any aftermarket hardware.
How are the 18" TST wheels made?
They are Flow Forged. The 18x8.5" TST wheels are manufactured in a Flow Forged process. They are tested to the JWL, VIA, SAE J2530 & TÜV standard.
Do I need to change the color of my existing lug nuts and center caps to match my new TST wheels?
That's an aesthetic decision only you can make. All TST Wheels come with T Sportline color-matched center caps. For those who purchase Satin Gray or Satin Black finish, we recommend purchasing ourLug Nut Cap Covers in Black for a stealth appearance.
What is the warranty on TST wheels?
Click here for T Sportline Limited Warranty
How long until my TST wheels arrive after my order?
We process orders within 72 hours (unless your wheels are back-ordered). Please allow for 1-7 business days transit time from the day you receive a tracking number. We will email you if your wheels are back-ordered.
Do you ship internationally?
Yes! We ship worldwide and offer flat rate FedEx/DHL shipping to select countries.
Will installing your Wheel & Tire Package void my warranty?
Changing wheels and tires won't void your Tesla warranty unless Tesla can prove that our wheels caused the need for repairs. Also, we use factory-size tires only. In other words, your warranty will still be valid when your windshield wiper malfunctions, even if you've upgraded to our Wheel & Tire Package.
Does the 18" TST Flow Forged have any testing certification?
