Cassette Sunrace CSMX9X XD Driver MTB 11V. SunRace 703861 €110.51 €121.10 -8% The 11-speed Cassette sunrace CSMX9X XD Driver for MTBis made of lightweight A7075aluminum, being a lightweight and durable cassette with great performance for use in MTB. It is compatible with SRAM XD cores and features Fluid Drive Plus technology bringing greater features to this Cassette. Add to cart