NEW SRAM GX Type 2.1 10-Speed Long Cage Rear Derailleur Black
No more chain slap
GX rear derailleur is compatible with older SRAM Exact Actuation shifters and has a clutch to stop chain slap and dropped chains. It works well, easy to set up, and even black matte finish is pleasing to look at. I don't see a reason to spend more $$ on a higher end deraille...Read full review
Wolf Tooth Components Tanpan: 10-Speed Conversion
Works as advertised
Works as advertised, it's a well thought out product. While the adapter is expensive, it is well designed and the craftsmanship is good. Also, it is the only game in town, at least for now.