Rear brake disc 4T-150, three-bolt is a brake disc for scooters and mopeds. The brake disc works together with the pads to stop the rear wheel. The name indicates the three-bolt mounting pattern.
Consider replacing it if the disc is warped or has deep grooves, or the brake vibrates or makes noise. Before buying, compare the new part with the old one by dimensions, shape, and mounting: vehicles from different years can differ.
