Shimano MF-TZ500 - Mehrfachfreilauf Ritzel - 7 Gang - 14-28
Shimano Deore CS-M5100 Hyperglide 11 Speed Mountain Bike Cassette - 11-42/51. Speed:7 Speed. For 7-speed gear systems. Suitable for mountain bikes and a wide range of other cycles. SunRace CSM637 Cassette 7 Speed - Silver - 11-28 / 12-28.