Comprehensive Acura TL Type S Wheel Size and Fitment Guide

The factory wheel size for the 2007–2008 Acura TL Type S (UA7) is 17x8.0 inches with a +45mm offset, a 5x114.3mm bolt pattern, and a 64.1mm center bore. For the modern 2021–2026 Acura TLX Type S, the standard wheel size is 20x9.0 inches with a +50mm offset and a 5x120mm bolt pattern.

Understanding the specific wheel dimensions for the Acura TL Type S requires distinguishing between the classic third-generation (UA7) sedan and the modern TLX Type S revival. Because the Type S designation signifies a performance-oriented trim, wheel specifications are not merely aesthetic; they are engineered to clear large Brembo braking systems and accommodate wider tire contact patches for improved lateral grip. Whether you are a restorer looking for OEM "Waffle" wheels for a 2008 model or an enthusiast seeking aftermarket 20-inch options for a 2026 TLX, precise measurements for offset, backspacing, and bolt patterns are critical to maintaining vehicle safety and performance.

The 2007–2008 Acura TL Type S (UA7) Wheel Specifications

The third-generation Acura TL Type S remains a benchmark for front-wheel-drive sport sedans. Its wheels, often referred to by the enthusiast community as "Waffles" due to their multi-spoke design, were manufactured by Enkei. These wheels were specifically finished in a Dark Anthracite metallic paint, distinguishing them from the silver-finished wheels found on the standard TL.

Standard Dimensions and Geometry

The UA7 Type S utilized a 17x8.0-inch wheel. While the width might seem modest by 2026 standards, the 8-inch width was a significant step up from the 7-inch and 7.5-inch wheels common on mid-sized sedans of that era. The +45mm offset ensures that the wheel sits tucked slightly inside the fender, providing a balance between a wide track and protection from road debris kick-up.

The 5x114.3mm bolt pattern (also known as 5x4.5 inches) is the most common Japanese five-lug configuration, making the UA7 highly compatible with a vast array of aftermarket options. However, the 64.1mm center bore is a specific Honda/Acura measurement. If you are fitting aftermarket wheels with a larger center bore, hub-centric rings are mandatory to prevent high-speed vibrations.

The Brembo Clearance Challenge

The most critical factor for UA7 wheel fitment is the front braking system. The Type S came equipped with four-piston Brembo fixed calipers. Unlike standard sliding calipers, these units are bulky and sit much further outboard. Consequently, many wheels with a 17x8.0 +45mm specification will not fit the TL Type S because the spoke curvature (X-factor) is insufficient to clear the caliper face. When shopping for aftermarket replacements, owners must verify "Brembo clearance" specifically, rather than relying on diameter and width alone.

The Modern Era: 2021–2026 Acura TLX Type S Wheel Specs

With the return of the Type S badge in 2021, Acura shifted the TLX into a more aggressive performance tier, necessitating a move to much larger wheel and tire packages. By 2026, the TLX Type S has solidified its place as a heavy-hitting sport sedan, utilizing wheel technology derived from the NSX program.

Upsizing to 20 Inches

The current generation TLX Type S features 20x9.0-inch wheels as standard equipment. The transition to a 9-inch width allows for a 255/35R20 tire, providing a significantly larger footprint than its predecessors. The +50mm offset is relatively high, designed to keep the steering geometry optimized for the Super Handling All-Wheel Drive (SH-AWD) system.

The Shift to 5x120 Bolt Pattern

A crucial technical change for the modern Type S (and all 2021+ TLX models) is the move from the traditional 5x114.3mm bolt pattern to 5x120mm. This shift aligns the TLX with the heavy-duty specifications used by the Acura MDX and the Honda Civic Type R. Owners of older TL models cannot reuse their wheels on the new TLX Type S without adapters, which are generally discouraged for high-performance applications due to the added stress on wheel studs.

Lightweight Y-Spoke Options

Acura offers a lightweight wheel package for the TLX Type S, often referred to as the "NSX-inspired" Y-spoke wheels. While they maintain the 20x9.0 dimensions, these wheels are forged rather than cast. In the context of 2026 performance tuning, reducing unsprung mass at each corner significantly improves damper response and turn-in crispness. These wheels typically shave off several pounds per corner compared to the standard multi-spoke Type S wheels.

Technical Comparison Table: Acura TL Type S Generations

Understanding Offset and Backspacing for Aftermarket Fitment

When moving away from factory Acura wheels, understanding offset is vital to prevent rubbing against the suspension struts or the outer fender arches.

Positive vs. Negative Offset

Both the UA7 and the modern TLX Type S use a high positive offset. This means the mounting surface of the wheel is located toward the street side (front) of the wheel's centerline. If you choose a wheel with a lower offset (e.g., +30mm), the wheel will poke out further toward the fender. While this creates a "flush" look that many enthusiasts desire, it can lead to tire-to-fender contact under heavy suspension compression unless the fenders are rolled or the vehicle is running increased negative camber.

Scrub Radius Considerations

The TL Type S suspension is engineered around a specific scrub radius—the distance between the kingpin axis and the center of the tire's contact patch. Significant changes to wheel offset (more than 5–10mm) can alter this radius, leading to "tug" under braking, increased steering effort, and accelerated wear on wheel bearings. For the 2026 TLX Type S, maintaining an offset near +50mm is recommended to preserve the intricate torque-vectoring characteristics of the SH-AWD system.

Tire Selection and "Plus-Sizing"

Choosing the correct tire size is as important as the wheel itself. For the 2007–2008 Type S, the factory 235/45R17 provides a sidewall height that offers decent ride quality and rim protection.

Upsizing the UA7

Many UA7 owners "plus-size" to 18-inch wheels for a more modern appearance. The ideal fitment for an 18-inch upgrade is 18x8.5 with a +35mm to +45mm offset, paired with 245/40R18 tires. This combination maintains an overall rolling diameter very close to the factory 17-inch setup, ensuring that the speedometer and odometer remain accurate.

Modern TLX Type S Tire Options

For the 2021–2026 TLX Type S, the standard 255/35R20 is already quite aggressive. However, for those seeking maximum grip, a 265/35R20 can often fit on the factory 9-inch wide wheels without significant rubbing, provided the car is at factory ride height. It is important to note that the TLX Type S uses a load rating of at least 97Y; fitting tires with a lower load index can be dangerous given the vehicle's nearly 4,000-pound curb weight.

Critical Hardware: Lugs and Hub Rings

A common mistake when changing Acura TL Type S wheels is reusing the factory lug nuts on aftermarket wheels.

1. Seat Type: Acura OEM wheels use a spherical (ball) seat lug nut. Almost all aftermarket wheels (Rays, BBS, Enkei, Vossen) use a 60-degree conical (tapered) seat. Using OEM ball-seat lugs on a conical-seat wheel will prevent the wheel from seating properly, leading to loosened lugs and potential wheel failure.
2. Thread Pitch:
   • The 2007–2008 TL uses M12 x 1.5 threading.
   • The 2021–2026 TLX Type S uses M14 x 1.5 threading.
3. Hub-Centricity: Acura hubs are 64.1mm. If your aftermarket wheels have a 73.1mm bore (a common universal size), you must use 73.1mm to 64.1mm hub-centric rings. This ensures the wheel is centered by the hub rather than just the lug studs, eliminating steering wheel shimmy.

Frequently Asked Questions

Will base TL wheels fit the TL Type S?

For the 2007–2008 models, base TL wheels (17x8 +45) usually will not fit the Type S because they lack the necessary spoke clearance for the front Brembo calipers. You would need at least a 15mm-20mm spacer to make them clear, which may require extended wheel studs for safety.

Can I run 18-inch wheels on the 2026 TLX Type S?

While the 2026 TLX Type S comes with 20s, some owners prefer 19-inch wheels for winter setups or track use to gain more sidewall. A 19-inch wheel can fit, but you must ensure the barrel of the wheel is large enough to clear the 14.3-inch front rotors and the large Brembo calipers. 18-inch wheels are generally not recommended as they rarely clear the front brake assembly.

What is the bolt pattern for a 2008 Acura TL Type S?

The bolt pattern is 5x114.3mm. This is standard for most Honda and Acura sedans of that era, including the Civic, Accord, and standard TL.

What is the maximum wheel width for a 2021+ TLX Type S without rolling fenders?

On a stock-height TLX Type S, you can typically run up to a 9.5-inch wide wheel with an offset around +40mm. Going to a 10-inch width usually requires a higher offset (+45mm or more) and careful tire selection to avoid hitting the suspension components on the inside or the fender on the outside.

Do I need to recalibrate my TPMS after changing wheels?

Yes. The 2007–2008 TL Type S uses a 315MHz sensor that usually self-learns after driving for several miles, provided the sensors are compatible. The 2021–2026 TLX Type S uses a more advanced system; if you buy new sensors for your aftermarket wheels, they must be programmed to the car's ECU using a TPMS tool or by a dealership to ensure the Tire Pressure Monitoring System functions correctly.

Summary of Recommendations

If you are maintaining a classic 2007–2008 Acura TL Type S, stick to the factory 17x8.0 +45 "Waffle" wheels for the best resale value and guaranteed brake clearance. If you must go aftermarket, prioritize wheels that are specifically verified to clear Brembo brakes and always use hub-centric rings.

For owners of the 2021–2026 Acura TLX Type S, the move to a 5x120 bolt pattern and 20-inch diameter means you should look for high-load-rated wheels that complement the SH-AWD system. If performance is your priority, the lightweight forged Y-spoke wheels remain the best balance of aesthetics and unsprung weight reduction available in the 2026 market. Regardless of the generation, always match the lug nut seat type to the wheel and verify that the load rating of both the wheels and tires meets or exceeds Acura's original equipment manufacturer specifications.