Bumpstops Bumpstops Bump Stop, Universal 49mm x 33mm x 20mm - BS001 Universal polyurethane bump stop. Diameter = 49mm Height = 33mm Bore = 20mm Please click on the instructions link for drawing - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!