RTX ST 18x7.5 +45 Black 5x112 57.1mm OEM-spec Euro wheel
RTX

RTX Steel 18x7.5 +45mm Black

4.8(224 store reviews)
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$168.99$145.99 each
$583.96 set
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This Wheel Ships from Canada. Allow up to 3 weeks for Delivery.
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Vehicle Compatibility

Customer Reviews

Specifications

Brand RTX
Model Steel
Part Number X48512
Diameter 18"
Width 7.5
Offset +45
Bolt Pattern 5x112 (5x4.41)
Centerbore / Hub 57.1mm
EV Approved No
Load Rating 700 kg / 1543 lb lbs
Weight 31.9 lbs
Color Black
Finish Black

About the RTX Steel

For drivers of Audi, Volkswagen, and Mercedes-Benz vehicles who want a wheel upgrade that feels engineered rather than retrofitted, the RTX ST in 18x7.5 with a 5x112 bolt pattern and 57.1mm centerbore is a compelling choice. The centerbore matches the OEM hub bore specification found on many of these European platforms, meaning the wheel seats flush against the hub without the need for additional hub-centric rings — a detail that matters for ride quality and long-term fitment integrity.

Vehicles like the Audi A3, Volkswagen Passat, and Mercedes-Benz A-Class share this hub bore specification, and the +45 offset places the wheel face precisely where European engineers expect it — close to flush, composed within the arch, and visually cohesive with the car's overall geometry. The matte black finish is deliberate in its restraint, adding visual depth without disrupting the factory design intent.

At 18 inches across a 7.5-inch width, the RTX ST occupies a sweet spot between everyday practicality and genuine visual presence. The 700 kg load rating per wheel reflects a construction standard appropriate for the demands of spirited road driving and regular commuting alike.

TFS Wheels offers free shipping to the Lower 48 states on every order, backed by a 100% fitment guarantee. Explore our Shipping and Delivery details, Return Policy, and FAQs for complete purchase confidence.

Why TFS Wheels

Authorized Dealer — 100% Brand New Wheels

TFS Wheels is an authorized dealer for every brand we carry. Every wheel and tire we ship is brand new, unused, and packaged in its original manufacturer's box. We never sell refurbished, demo, or return-stock product. All manufacturer warranties apply and our warehouse is staffed by people who only handle wheels and tires — no in-transit damage, no test-fits, no surprises.

Free Shipping (Lower 48)

Free shipping on every order — wheels, tires, and accessories — to the contiguous United States. No minimum order, no hidden fees.

Standard delivery is 4–7 business days; expedited is 1–4 business days. Orders placed before 1:00 PM ET typically ship the same day. We do not ship internationally or to PO boxes.

Fitment Guarantee

If a wheel marked "Direct Fit" or "Aftermarket Fit" for your vehicle arrives and does not fit as expected, we cover both the restocking fee and return shipping. The same applies if the bolt pattern does not match — provided your vehicle information was submitted at checkout.

To qualify for the guarantee, enter your year, make, model, and submodel before placing the order.

Manufacturer's Warranty

Every wheel is covered by the full manufacturer's warranty against defects in materials and workmanship. Coverage terms vary by brand — most cover structural integrity for the life of the wheel and finish for 1 to 2 years from purchase. If you ever have a warranty question, contact us first; we work directly with the manufacturer on your behalf so you don't have to.

Accessories Included with Your Order

When you submit your vehicle information at checkout, the right lug nuts and (if needed) hub-centric rings are automatically added to your cart in the correct sizes — no guessing, no separate ordering.

TPMS sensors are also available in the cart. We program each sensor to your vehicle's exact year, make, model, and submodel before shipping, so they arrive ready to sync with your truck or car the moment they're installed. This typically saves customers the dealer or installer's programming fees, which often run several dozen dollars per wheel.

Returns

Returns are accepted within 30 days of purchase on items in new, unused condition. A 25% restocking fee applies to general (change-of-mind) returns, and the buyer covers return shipping.

The restocking fee and return shipping are waived for incorrect items, transit damage, or fitment issues when vehicle information was provided at checkout. Single wheels, single tires, mounted items, special orders, and accessories (lug nuts, locks, hub-centric rings, TPMS sensors, installation kits) are final sale.

Let customers speak for us

from 224 reviews
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Great

Great wheels

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Anonymous
Awesome wheel

Awesome wheel. Fast shipping and great customer service!

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Levi Broadway
They look way better in person! These were for a

They look way better in person! These were for a dual spare setup and they actually look great and would buy a full set if I was in the market for a full set. The price was great as well.

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Full Throttle FT-5092 15x10 -44mm Gloss Black with Machined Spokes
Sherri H.
Looks Great on my Jeep

Exactly what I was going for. I love the look of these on mu Jeep.

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Kelly-K
Kia Stinger Approved

These wheels make my Kia Stinger pop!

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Velgen VFF12 24x10 +18mm Gloss Black
Thomas J. Rozycki, Jr.
Everything was A+

Everything was A+: fast shipping, great communication, a seamless transaction.

Velgen VFF12 24x10 +18mm Gloss Black
Ferrada FR4 20x9 +35mm Gloss Black Machined Face Center / Chrome Lip
Kelly-K
Kia Stinger Approved

People said these wheels wot fit they were wrong People said these wheel would rub they were wrong People said these wheels would not look good on the car they were wrong! So now I don't talk to those people anymore because they were wrong!! Lol
Thanks you guys for a great deal!

Ferrada FR4 20x9 +35mm Gloss Black Machined Face Center / Chrome Lip
RTX BLACK WIDOW 18x8 +40mm Black Machined Grey
Mark Webb
Great looking wheel!

Put these on my 2013 Lincoln MKZ in machined grey. Got tired of the factory 19’s bending every time we hit a pothole. Went with an 18 on these and saved 7 pounds per wheel. They look great and the ride is better too.

RTX BLACK WIDOW 18x8 +40mm Black Machined Grey
Shift Crank H28 18x8.5 +30mm Gloss Black Candy Red Machine
Anonymous
Awesomeness

I had got some rims like these ones before. So I decided to buy more. They’re very awesome looking the color. The depth of the rim is awesome. Looks great on my car.

Shift Crank H28 18x8.5 +30mm Gloss Black Candy Red Machine
RTX Steel 13x5 +40mm Black
William R
Great for subabru sambar

Got these for my subaru sambar, excellent for my needs and low cost

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RRW RR2-H Flow Form 17x8.5 0mm Matte Gunmetal
Paul F. In Albuquerque
Great to do business with

Great company to work with in purchasing your new wheels and related products. Initially, I was going to give only 4 stars due to the fact that the wheels I really wanted were actually on backorder despite being advertised as “in stock” on their website and the need to buy the last full set for the advertised price (which further implied the wheels were available). Initially blamed wheel manufacturer for not updating their supply which I believe is true but it’s also TFSWheels’ responsibility to maintain their own site. Nonetheless, TFSWheels was quick to respond and offered to refund my purchase. I decided to pick another wheel that they did have in stock. Throughout the exchange, TFSWheels (Jeremiah) was very responsive to all my questions or concerns. They even made sure if I knew my wheels would fit since I have an older Land Cruiser. Once selected, they stood by their pricing for the new selection and service was outstanding. Wheels arrived in great condition and now I am even happier after seeing my new selection. So 5 stars is the right rating and I would buy again from them!

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Vision Wedge 476 22x9.5 +30mm Gunmetal Gray with Machined Spokes
J.Watts
Amazing Wheels

Love the style. Looks stock and classy, not too much. Clients love the exposed red brake calipers and clean look when pulling up.

Vision Wedge 476 22x9.5 +30mm Gunmetal Gray with Machined Spokes
Ferrada FR2 20x9 +35mm Silver Machined Face Center / Chrome Lip
Fabiano Loures
Excellent service! Recommend.

Excellent service provided by Jeremiah. Great communication, went the extra mile trying to find a perfect fit for my car. The wheels were beautiful, great quality, fast shipping, but unfortunately not a fit for my vehicle. Would recommend TFS to anyone who needs new wheels!

Ferrada FR2 20x9 +35mm Silver Machined Face Center / Chrome Lip
Ferrada FR9 20x10 +40mm Brushed with Bronze Tint
Cathy Brady
Amazing wheel!

I absolutely love my wheels!

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TFS Wheels
Robin

I was very happy with purchase. Did have a bump with lugs. Jerrimah and worked through it. Just verify some Lexus use lug bolts instead of lug nuts. Very happy with end results

TFS Wheels