Michelin 631946 210/55VR390 91V TL Trx-b Radial Tire, Blackwall

The Michelin TRX-B 210/55VR390 91V TL is a radial tire in blackwall. It is tubeless and carries a 91V load/speed rating. Mounted, it measures about 24.50 in tall and 8.25 in wide. It is DOT approved for street use.

210/55VR390 91V 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.

V Speed Rating:

V Speed Rated: Up to 149 mph (240 km/h). Often required OE for higher performance trim level automobiles.

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:

The 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.

Specifications:

• Size: 210/55VR390 91V TL
• Construction: Radial
• Sidewall: Blackwall
• Overall Diameter: 24.50 in
• Section Width: 8.25 in
• Load/Speed Index: 91V
• Tube: Tubeless
• DOT Approved: Yes

Dimensions are approximate and vary with rim width and inflation pressure.