June 10, 2013
Probably the cheapest, quality derailleur you can buy from a named brand/company. You can't beat the $20 price tag.
The pros end with the price. Indexing with this derailleur is a pain. I've had to adjust it so many times just to get it to work properly. Finally gave up and took it to the lbs and it took 2 visits for them to finally get it dialed in.
Not the best option out there. Yes it's dirt cheap but you get what you pay for. If this derailleur didn't come stock with my bike, I'd pick something else. I'll just use it until it dies and upgrade to a better one.