Status ex display item was fitted to a showroom display bike may show signs of handling storage item has minor scratches throughout due to display fitting new and unused shimano hg20 9 speed cassette the shimano cs hg20 9 speed cassette combines shimano build quality with value for money hyperglide cassettes are all precision engineered to ensure that all of the teeth work perfectly with rest of the gear system giving smooth and accurate shifting to reduce the weight of the cassette the s