The TRX GT-B vintage tire is the ultimate evolution of the Michelin TRX. Invented in 1975, the TRX process is the "low profile" tire by Michelin- TR= (Tension Répartie- this ensures a more balanced distribution of tension in the carcass. The TRX GT-B was developed in partnership with BMW to equip the 635 Csi coupe for exceptional driving precision. Comfort is however well present with high and flexible sidewalls. This improved version of the TRX also significantly reduces rolling noise thanks to a specific tread pattern.