Shimano CSHG417128 HG41 7 Speed Cassette 11 - 28T :: £13.50 :: Components. :: Cassettes - 7 Speed. :: For Hand built bike wheels & all your cycling needs!
Amazon.com : SHIMANO CS-HG41 Hyperglide Cassette (11-30T 8 Speed) : Bike Cassettes And Freewheels : Sports & Outdoors