I should have a SPEDAO cassette in my hands today or tomorrow and be riding on it over the weekend. I'm using a WheelTop EDS OX derailleur.
http://www.aliexpress.us/item/3256804696644636.htmlSPEDAO 12s cassette
Model : WSD-8012-1050-A1
10-50T
12 speed: 10-12-14-16-18-21-24-28-32-36-42-50T
Weight: approx. approximately 398g
12 speed compatible with XD freehubs
I've had good luck in the past with SunRace and Sunshine on my gravel and MTBs but wanted to try something different this time around and the SPEDAO seemed to have a decent amount of positives said about it around the internet.
UPDATE— I received the cassette and chain today. Super scientific hand weighing against the SRAM XG1299 cassette it’s replacing makes the 50g difference feel nonexistent.
Slapped the cassette on, cut the chain (I stripped and waxed the fancy looking lightweight hollow chain it arrived with) and spun it through the gears. The WheelTop EDS didn’t miss a beat and needed no adjustments. Went up and down the road, everything seems perfect. Will hopefully get in a nice long ride this weekend if the weather holds out.