Brake disc for Viper 125-200 cc motorcycles and similar (China, Minsk). The brake disc rotates together with the wheel, and the caliper pads clamp it during braking and slow the motorcycle down.
The disc is replaced if it has deep scores, is warped (pulsation at the lever), has worn down to the minimum thickness or shows signs of overheating. Check the pads at the same time: worn pads quickly ruin a new disc. The name states the size 18x1.6, which is needed for matching it to the wheel.
Choose by the designation 125-150J from the name.
