Product 1: Shimano model CS-HG31-8
Product 1: 11-32 teeth
Product 1: 8 Speed setup
Product 1: Black/brown in color
Product 2: Hyper glide (HG) series 6, 7, or 8-speed compatible chain, recommended for Altus and older Alivio
Product 2: STX drivetrains
Product 2: HG technology has chamfered inner plates to optimise shifting performance on HG sprockets
Product 2: Comes with quick and easy to use connecting link