- B1 Wide Chain * 1/2" X 1/8" * Pin Length: 9.2 mm * 112 Links * Colour: Black/Silver * Bushed Construction * Single speed, internal gear, BMX, Track and Fixed gear **Rust Buster** * 1/2" X 1/8" * Pin Length: 9.2 mm * 112 Links * Colour: Matt Silver * Bushed Construction * Anti Rust "Rust Buster" coated * Single speed, internal gear, BMX, Track and Fixed gear