Alex Marquez says excessive rear tyre degradation and vibrations cost him a chance at the podium in MotoGP’s Valencia Grand Prix, though he admits he’s still unsure what caused these issues.<br>Lining up on the front row of the grid for Sunday’s season finale, Marquez made a solid start to slot into second place behind race leader Marco Bezzecchi. However, his pace began to drop off as early ...<a class='more' href='https://www.motorsport.com/motogp/news/alex-marquez-explains-rapid-drop-from-second-to-sixth-in-valencia-motogp-finale/10777421/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-MOTOGP&utm_term=News&utm_content=www'>Keep reading</a>