I just got a new Invacare Action A4. I opted for the frog leg front and rear suspension equipment and I am having a problem. The rear suspension uses a hex bolt to clamp down on the camber tubes and I cannot seem to get it tight enough. When I am riding on a slant my spokes will begin clicking on my chair and eventually will become jammed. Has anyone else had this problem? MY old A4 used a clamp-style screw to tighten the axle around the camber tubes and I never had this problem, but these screws will not fit my new suspension kit.

Thanks, Jorge.