After about a year's use, the lower jockey wheel literally fell out while I was riding. The trigger shifter, by the way, also failed catastrophically a couple months' prior and VO were quick to replace it. When first installed and well-tuned, the combination is wonderful, crisp, and a joy to ride with. But the catch is that you don't want to ride too far from home because you may have to push the bike all the way back.

I bought this derailleur from my LBS. They helped get it set up on the first bike and, with a friction shifter and I've now moved this over to a new bike with the Sensah SRX 1x11 brifters. Unfortunately, the experience was less perfect. It seems like the mech has trouble "falling" completely through the full range of the cassette. On an 11-46 cassette, it struggles to get to the 11T cog without loosening the clutch regardless of limit screw adjustment. Moving the derailleur by hand moves it between all gears without issue. This leads me to believe that the spring is not strong enough to overcome the clutch when fully engaged. It also seems like the indexing is not quite aligned with the supposedly matched brifters. The experience with a friction shifter was much nicer.

The price is great and I was excited to try something new. I got the Sensah SRX Rear Derailleur as well as the Sensah SRX brifters, got it all set up but for the life of me I couldn't get the indexing smooth and accurate. I wasn't able to figure out what exactly was the cause but I tried everything and still couldn't get it to work.

I noticed when I initially installed it that there was a lot more lateral play in the derailleur than I've seen in other derailleurs I've used in the past made by Shimano or SRAM. I assume it's because this is a cheaper product that isn't made to as high tolerances. I'm not sure if this play was part of why I could never seem to get the shifting to work smoothly but thought I'd mention it here.

Still, I've heard good things about the SRX groupset and that it works pretty smoothly and is pretty comfortable so it could've just been me.

Surprisingly good stuff. I would buy again.

Put on 3 x drivetrain with 44 large tooth on back
Works perfectly with derailer extension