Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed

Installation was not easy sent it to bike shop, they have the tools and knowledge. I crunched my RD-X9 on a rock. This was a great replacement for my 10 speed fat bike. I would recommend. I have only ridden it about 8 times but no shifting issues. Durability, they hang down asking to be knocked off but, reasonable priced replacement for the x9. Would recommend for the average bicycler for a replacement on a 9/10 speed, mine is 10 speed.

IMO, this is the best derailleur you can buy in this price range. It is kind of odd that over the decades bicycles have gone from 3 speed "English" bikes to 24 speed bikes. What people are noticing is when you have 24 different speed combinations and ratios, a lot of them are so close together that they more or less get duplicated, so you really don't have 24 "useable" speed combinations. So, it makes sense to a lot of folks that a single chainring turning a 10 speed wide ratio cassette is a better and simpler system, especially since you now only have one shifter to worry about, and the cassettes come with customizable cog ratios. 10 cog cassettes are usually a little longer than 5, 6, 7 and 8 cog cassettes, so it is important to have a sturdy and dependable derailleur.

Replace a broken version of the same derailleur. It shifts OK, but not perfect all the time. I need to adjust the tension in the shift cable every so often and that usually fixes it. Once the chain is sufficiently worn, no adjustment seems to work.The price is great and the online Sram documents are sufficient for a good install. The black paint goes well with my orange bike, which seems to matter more than it should.

I bought this item because my original derailleur cage broke and was not replaceable. No trouble installing the new derailleur but had a little adjusting it. I've had several rides with it and can not how quiet it is and the shifting is so smooooth it's unbelievable. It is now March 2024 and it is performing superbly.

I was looking to replace the exact derailleur on my Catrike since during the process of converting it back to manual I ended up bending the cage because I didn’t realize the hanger was damaged. Worked great and now that it’s all aligned and tuned up she works great. I’m not a hardcore cyclist so this works great for my needs

I never give bad reviews but I wish I could give this a zero! Delivery was fine, no problem with amazon but this product is crap! I wanted to replace my X9 as it sustained damage. SRAM calls this thing an equivalent replacement based on research. It is poor at best. The B screw bent causing the derailleur to not align and throwing the chain. I thought I did something wrong with installation ( not my first rodeo with this type of install). There is entirely too much play with the B screw configuration. Garbage! Do a better job SRAM!

Ordered this to use with my Rival shifters so I can use a bigger cassette for climbing.I was worried initially because of the bad reviews, but so far I haven't a single problem.Springs are good.No wobbly linkages.B tension screw and plate are working.Hi and Lo limit screws have no problems.Very easy to install and adjust.I am still waiting for my new cassette (11-36) and new chain, but I predict that there will be no problem adjusting the RD when I swap parts.Can't comment about durability yet, but so far the RD looks durable.

I went to a 1x10 setup and this derailleur is fantastic. Smooth precise shifts. I use it with a Bafang mid-drive motor and it all works very well together. The locking cage is great for swapping back wheel and working on your chain, but it is very stiff. No chain slap at all, or shadow gear changes. I would buy it again if I damaged this one. So far also tough. Handles the trails perfectly.