Michelin TRX-B | 240/55VR390 89W
Michelin TRX-B | 240/55VR390 89W Michelin TRX-B | 240/55VR390 89W Michelin TRX-B | 240/55VR390 89W Michelin TRX-B | 240/55VR390 89W
Tire Series TRX-B
Brand Michelin
SKU 631954
Product Size 240/55VR390 89W TL
Tire Construction Radial
Sidewall Style Blackwall
Radial Width 240 mm
Radial Aspect Ratio 55
Rim Diameter (in/mm) 390mm
Overall Diameter (in) 26.2
Section Width (in) 9.8
Rim Width (in) 150mm, 165mm, 195mm
Service Description 89W
Speed Rating W
Load Index 89
Construction Ply POLY/STEEL
DOT Approved Yes
Tube Type or Tubeless Tubeless

Michelin TRX-B | 240/55VR390 89W



MICHELIN® TRX 240/55 VR 390 89W TL

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.

W Speed Rating

W Speed Rated: Up to 168 mph (270 km/h). Often required OE for very high performance trim level automobiles.

TRX Tire Series

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. Steering precision: 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.

Michelin Brand Collector Vehicle 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.

Product Questions & Answers

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