Расширитель кассеты Wolf Tooth 49T GC Cog для SRAM и SunRace 11 ск

In addition to working with Shimano 11 speed drivetrains, this modified 11-49 cassette works with any SRAM 11 speed rear derailleur and shifter. If you have an NX drivetrain, it drops right in! If you have XX1, X01, X1, or GX, you need a Shimano freehub driver, 11-42 cassette from SRAM, Shimano, or SunRace, and the GC49. The GC 49 is the latest addition to the legendary GC line and it's the biggest yet. The GC 49 cassette extender cog allow you to modify your 11 speed 11-42T cassette from SRAM or SunRace to create an ultra-wide range 11T-49T cassette. To achieve the best shifting, the GCs are optimized for Shimano or SRAM / SunRace cassettes. This includes 18T cassette cog for optimal gearing in the smaller cogs.