Tyre couplings Torsional Vibration Calculation on rquest,Custom Design for special Reqirements,Flexible element is made of Rubber reinfoced with Nylon Chords.PH Series has largest range. These have flexible member firmly bolted to clamping elements. There is no possibility of Tyre slipping out even in case of imperfect installation.Also available with magic Grip Bushing for Quick fitment & removal.