220/55VR390 88W TL TRX-B Blackwall Tire
These tires have remarkable grip thanks to the ideal distribution of pressure in the contact patch, and excellent comfort due to increased useful flexing zone. TRX tires are built in the authentic molds and are available in many sizes for European and US autos. Quantities are limited and current stock on hand may be available, but future production is not guaranteed. The invention of the TRX tires by Michelin in 1975 permitted a more even distribution of tension in the whole tire casing, which is where the name of TR standing for "Tension Repartie" ("distributed tension") comes from. The Michelin TRX won renown in Formula 1 racing with Renault and Prost and in the world rally championship on the Audi Quattro, 205 Turbo 16 and R5 Turbo. For the first time, the tire and its rim complemented one another perfectly, working as a single unit. The rim underwent a fundamental transformation, the essential characteristic of which was a flatter, lower flange. This new design of the rim and tire bead resulted in a gradual curvature of the casing, without the "S" shaped flexing inherent in traditional designs. Thanks to this innovative construction, the TRX tire offers better directional stability and makes a great contribution to the active safety of the vehicle, thanks to its exceptional handling close to the limit, especially when cornering.
Blackwall Tire
Since the introduction of carbon black rocked the tire industry, the original recipe for most tires has been a solid black sidewall. For classics and collector cars alike, it's hard to beat the no-nonsense appeal of a classic blackwall style tire. British sports car, classic truck and even hot rod enthusiasts love the way a nice period correct blackwall tire looks on their vehicles.
W Speed Rating
W Speed Rated: Up to 168 mph (270 km/h). Often required OE for very high performance trim level automobiles. This is an important consideration for restored and modified classic cars (Resto-Mods) where drastically improved performance over OE is added.
Michelin TRX
Thanks to a «Low Profile» allowing to dispatch the tension in the whole tire casing, the TRX tire offers better directional stability and is a major contributor to the vehicle's safety. With its historic profile, this tire is perfectly suited to sporty vehicles. The TRX notably distinguished itself in Formula 1 racing with the Renault Team as well as in the World Rally Championship on the Audi Quattro, 205 Turbo 16 and R5 Turbo.
Michelin Brand Classic Tires
Michelin is known for its high quality tires, and we keep thousands of popular Michelin tires in stock every day. Our Michelin product offerings include fitments from the 1920's all the way into the 2000's, with an intense focus on classic sports cars. Build quality, fitment options and period correct styling makes the Michelin product line a favorite among sports car enthusiasts around the world.
Please Note
- Tire mounted on wheel for demonstration purposes only. Wheel and other accessories are not included. Please note that dimensions listed (tread width, section width and overall diameter) are non-scientific and based on an inflated tire, mounted to a wheel. Dimensions may vary due to rim width and inflation pressure.
| SKU | 631947 |
|---|---|
| Weight | 22.400000 |
| Construction Ply | POLY/STEEL |
| Brand | Michelin |
| Product Size | 220/55VR390 88W TL |
| Tube Type or Tubeless | Tubeless |
| Rim Diameter | 390mm |
| Tire Construction | Radial |
| Tire Series | Michelin TRX-B |
| Speed Rating | W |
| DOT Approved | Yes |
| Width Radial | 220 mm |
| Sidewall Style | Blackwall |
| Radial Aspect Ratio | 55 |
| Load Index | 88 |
| Service Description | 88W |
| GTIN | 08669990634 |
| Section Width (IN) | 8.5 |
| Rim Width (in) | 135mm, 150mm, 180mm |
| Overall Diameter (IN) | 25.1 |
| Availability Date | 2026-04-30T00:00:00Z |
This Michelin TRX-B | 220/55VR390 comes in the 220/55R390 size, suitable for the classic and collector vehicles listed below.
About the 220/55R390 Tire Size
The 220/55R390 is a radial tire size associated with select late-1970s and 1980s vehicle applications, including BMW, Ford, Mercury, and Ferrari models from 1978 through 1989. For shoppers viewing the Michelin TRX-B | 220/55VR390, this size connects the product to applications such as BMW 733i, BMW 6 Series variants, Ford Thunderbird, Mercury Cougar, and Ferrari Mondial 3.2. For more detailed information on this tire size, explore the 220/55R390 tire on Coker Tire Fitment Guide.
Vehicle Fitment for the Michelin TRX-B | 220/55VR390
The Michelin TRX-B | 220/55VR390 is available in a tire size associated with a range of classic and collector vehicles. The vehicle applications below are organized by year, make, and model to help identify vehicles associated with the 220/55R390 size. Explore the linked Make & Model and Year Make & Model pages for more detailed fitment information.
Fitment information should be verified for the specific vehicle before purchase. Confirm tire size, wheel fit, load requirements, overall diameter, and available clearance.
1976–19802 makes · 5 fitments
The 1976–1980 period includes 220/55R390 applications across BMW and Ford. Coverage in this range centers on BMW 733i and 633CSi models, along with the 1980 Ford Thunderbird.
BMW
BMW applications in this period include the 733i and 633CSi.
Ford
Ford fitment in this period is represented by the Thunderbird.
1981–19853 makes · 25 fitments
The 1981–1985 period covers a broader mix of 220/55R390 applications across BMW, Ford, and Mercury. This range includes multiple passenger-car lines with recurring BMW, Thunderbird, Mustang, Capri, and Cougar fitments.
BMW
BMW applications in this period include the 633CSi, 733i, 635CSi, and 735i.
Ford
Ford applications in this period include the Thunderbird and Mustang.
Mercury
Mercury applications in this period include the Cougar, Capri, and Marquis.
1986–19904 makes · 15 fitments
The 1986–1990 period includes 220/55R390 applications for BMW, Ferrari, Ford, and Mercury. BMW remains the largest share of fitments in this range, with additional single-model applications from Ferrari, Ford, and Mercury.
BMW
BMW applications in this period include the 635CSi, 735i, L7, and L6.
Ferrari
Ferrari fitment in this period is represented by the Mondial 3.2.
Ford
Ford fitment in this period is represented by the Thunderbird.
Mercury
Mercury fitment in this period is represented by the Cougar.
Frequently Asked Questions
Fitment & Compatibility â–¼
Is the Michelin TRX-B 220/55VR390 tire suitable for mixed front and rear fitment setups? â–¼
The Michelin TRX-B 220/55VR390 can be used in staggered setups if the vehicle originally supported different front and rear sizes within the TRX system. However, maintaining proper diameter balance is critical for handling and drivetrain performance.
Using different widths or diameters can affect traction distribution and steering response. For vehicles with rear-wheel drive, mismatched diameters can also influence differential behavior. It is best to follow factory sizing recommendations unless the setup has been carefully engineered.
Tire Size Equivalents & Conversions â–¼
What conventional tire sizes are closest to the Michelin TRX-B 220/55VR390 tire? â–¼
The Michelin TRX-B 220/55VR390 does not have a direct inch-based equivalent because it is part of a unique metric TRX system. However, tires with similar overall diameter and width may approximate its dimensions in conventional sizing.
With a 25.1-inch diameter and 8.5-inch section width, comparable sizes might exist in the 15-inch or 16-inch range. These alternatives can approximate stance but will not replicate the TRX system’s integrated performance characteristics or fitment requirements.
Performance & Use Case â–¼
How does the Michelin TRX-B 220/55VR390 tire handle at highway speeds? â–¼
With a W speed rating, the Michelin TRX-B 220/55VR390 is engineered for sustained high-speed performance. It maintains stability and control at speeds up to 168 mph, making it suitable for performance-oriented vehicles.
The tire’s construction helps manage heat buildup during extended highway driving. Even pressure distribution reduces uneven wear and enhances durability. Drivers will notice stable tracking and reduced wandering at higher speeds, which contributes to overall confidence.
How does the Michelin TRX-B 220/55VR390 tire affect cornering and steering response? â–¼
The Michelin TRX-B 220/55VR390 features a low 55 aspect ratio, which minimizes sidewall flex during cornering. This results in sharper steering response and improved control when navigating turns.
The tire’s contact patch is designed for even pressure distribution, enhancing grip at the limit. Drivers will experience predictable handling characteristics, especially in spirited driving conditions. Steering input translates more directly to vehicle movement compared to taller tires.
Is the Michelin TRX-B 220/55VR390 tire suitable for performance or spirited driving? â–¼
The Michelin TRX-B 220/55VR390 is well suited for spirited driving due to its high-speed rating and advanced construction. It was originally developed for performance vehicles and offers excellent handling near the limit.
The tire’s design supports aggressive cornering and stable braking. Its ability to maintain consistent contact with the road surface enhances driver confidence. This makes it a strong choice for enthusiasts who want both authenticity and performance capability.
How does the Michelin TRX-B 220/55VR390 tire perform in wet conditions? â–¼
The Michelin TRX-B 220/55VR390 benefits from even pressure distribution across the contact patch, which helps maintain grip in wet conditions. This design reduces the likelihood of uneven wear that can compromise traction.
However, as with any performance tire, maintaining proper inflation is critical. Incorrect pressure can reduce water evacuation efficiency and increase hydroplaning risk. Proper maintenance ensures consistent wet-weather performance.
Construction, Durability & Load Capacity â–¼
What makes the Michelin TRX-B 220/55VR390 tire construction unique? â–¼
The Michelin TRX-B 220/55VR390 uses a POLY/STEEL radial construction that distributes tension evenly across the tire casing. This design eliminates uneven stress points found in traditional tires.
The result is improved durability and consistent performance. The integrated TRX system allows the tire and wheel to function as a single unit, enhancing stability and handling characteristics.
How durable is the Michelin TRX-B 220/55VR390 for regular road use? â–¼
The Michelin TRX-B 220/55VR390 offers strong durability for regular road use when properly maintained. Its construction resists uneven wear and supports consistent performance.
Durability depends on correct inflation and alignment. Regular inspection helps identify issues early. With proper care, the tire provides reliable service over its lifespan.
What is the expected lifespan of the Michelin TRX-B 220/55VR390 tire? â–¼
The lifespan of the Michelin TRX-B 220/55VR390 depends on driving habits, maintenance, and road conditions. Proper care can extend the usable life significantly.
Regular inspections, correct inflation, and alignment are key factors. Performance-oriented tires may wear faster under aggressive driving conditions.
Installation & Maintenance â–¼
How does the Michelin TRX-B 220/55VR390 respond to long-term storage? â–¼
The Michelin TRX-B 220/55VR390 should be stored in a cool, dry environment away from direct sunlight. Proper storage prevents rubber degradation.
Maintaining correct storage conditions helps preserve tire integrity. Avoid placing heavy loads on stored tires to prevent deformation.
What are common installation mistakes with the Michelin TRX-B 220/55VR390 tire? â–¼
Common mistakes include attempting to mount the Michelin TRX-B 220/55VR390 on non-TRX wheels and improper inflation during installation.
These errors can compromise safety and performance. Using correct equipment and procedures ensures proper installation.
How can I maximize the lifespan of the Michelin TRX-B 220/55VR390 tire? â–¼
Maximizing lifespan involves maintaining correct inflation, alignment, and rotation schedules. Regular inspections help identify issues early.
Avoid aggressive driving and overloading. Proper care ensures consistent performance and extends tire life.
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