V-brake pads generally come in two types ,cartridge and non-cartridge. Non-cartridge pads: These are the simplest and most inexpensive pad type, consisting of a simple rubber block, with a braking surface and a threaded metal post on the opposite side by means of which the pad is attached to the brake arm. Cartridge pads are regarded as superior to non-cartridge pads as the metal shoe is more resistant to flex.
