Front brake pads for a disc brake, marking 125J, for Viper 125-200 cc motorcycles and similar (China, Minsk). The pads press against the brake disc and slow the wheel through friction.
Replace them when the friction layer is worn almost down to the metal, when there is grinding and squealing during braking, a longer braking distance or vibration at the lever. Replace both pads as a set, and inspect the disc for scoring and wear.
