For sale is a New Old Stock (NOS) SRAM X-9 Mountain Bike 9-Speed Long Cage Rear Derailleur.  Produced with quality components - including sealed bearing pulleys, it has a aluminum alloy long cage, and uses a 1:1 actuation ratio.  It's a well built, lightweight, and responsive rear derailleur that is one step down from the X-0.  In fact, I have one on my commuter bike, that's provided 10+ years of maintenance-free service.

In my opinion, it's one of the best 9-speed mountain bike rear derailleurs for the money.

It will arrive in a sealed box (as seen in the photos).  Buyer pays $9 shipping via USPS Ground Advantage.  Expert packing for FREE!

Returns accepted within 30 days of receipt (if returned in the same condition & box is still sealed).  Buyer pays return shipping.