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Item # SRM0030

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Item # SRM0030


Frustration alleviation.

Sram’s X.9 Rear Derailleur is the industry standard for quick, accurate shifting. The X.9 is tough and light, and with a 1:1 shift actuation ratio, gear changes are more positive than with other systems. Get rid of your bike’s frustrating ghost-shift system and move up to Sram.
  • Tough, lightweight composite cage flexes in a crash without bending your derailleur or hanger
  • Outward-facing limit screws are easy to access and intuitive to adjust
  • Sealed bearing upper pulley for maintenance-free riding in soupy muck

Reviews & Community

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SRAM X.9 Rear Derailleur

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Here's what others have to say...

5 5

New Standard

Used Shimano for ever, since 95'. Three years ago bought a bike that had a X9 drivetrain on it. Best change I ever made, I feel the performance increase has help me to be a better rider. Confident shifts and low maintenance. Perfect.

5 5

Thanks SRAM for helping me stick it to the man.

I swapped out the SLX that came on my ride with these sweet piece of machinery. There is no better shifting than the 1:1 actuation of SRAM. This shifts incredibly smooth and is always dependable.

5 5


Have had XT, XTR... all with satisfactory results. Got an X9 setup on my trail/freeride bike with a SRAM chain and it is pretty much awesome. I've had it on there for 3 years now and even still, when I need to pop quick shifts on Bobsled Trail, I know it's going to put the chain onto the next gear with precision. I always felt like the XT/XTR were a little sloppy when the chain was bouncing around a little. I love the stronger spring in the X9 as well. I say that this is the derailleur to get. X0 is supposed to be great... but not all of us have $200 to drop on something that could get ripped off by a random rock/root. :/

1 5

Do not recommend

I returned this derailleur. I have wanted to try a SRAM. I did not like the play between the bolt attaching it to the derailleur hanger and its derailleur frame. Shimanos don't have this built in sloppy wobble to the derrailleur. I used a HG chain listed as compatible but sure didn't seem like it. Extremely difficult to remove and I only hand tightened it, almost broke my hex wrench. Shimanos are so much easier to remove. Must have higher quality metal I don't know. Could not get it all adjusted correctly. I will stick with a Shimano XT.

5 5

Good Product Made Even Better

SRAM revamped the X.9 Derailleur and made it even sweeter. Now the cage tucks up even better to clear the rocks and the cable routing is more direct so the shifting is even better than before. Can't live without my SRAM.

5 5

SRAM X9 Rear derailer

Love the derailed. Good service and at the best price I found.

5 5

SRAM X9, love it!

Seriously, couldn't be happier with my SRAM X9 drivetrain. I just made the switch from Shimano XT at the beginning of this MTB season, and it shifts cleaner and requires less maintenance. X9 came stock on my Santa Cruz Heckler but do the comparison, it's also cheaper than XT. Oh, and lighter too.

5 5

Hell Yes!!!!

SRAM makes me happy!!!! Fire and forget with this baby! Rock solid design - been riding it for 7 months now and not a problem with it - dry and dusty to wet and muddy it just plain works! I have the SRAM X.0 on my XC bike and it doesn't work any better than the X.9. If I had to do it over again I'd put the X.9s on both of my bikes and get a haircut to save the 27ish grams of difference ;)

5 5

I'm a SRAM guy.

SRAM X.9 Rear Derailleur is freaking sweet. SRAM shifting has a robust made in America feel to it. The derailleur tucks up out of the way nicely and shifts when I tell it to. Ridden SRAM on my all mountain bike last year with no adjustments to the shifting. Just set it and forget it. So I'm putting it on my DH sled. It's also way cheaper than Saint.

5 5

Sram X.9

I have not had this derailleur for very long but it is working awesome so far! It is easily labeled for H, and L adjustment (although I haven't really needed to adjust it yet). I have this paired up with X.7 trigger shifters. Shift speed is amazing. Durability is awesome. I might have more to say about this as the years go on, but for now it is working awesome!

5 5

SRAM or death

These shift about as well as anything Shimano puts out. Crisp, clean, and they keep working no matter what the conditions. I have burned through a lot of derailleurs in my time, and I keep coming back to this one. It is just that good.

4 5

dont de-rail

If you go through derailleur's like I do spending 200 bones on a XO seems a little crazy. That's why I love the the x9 its durable relatively cheep and works super smooth. I like using the short cage version so that I get extra clearance from sticks and rocks.

4 5


These are pretty much the best bang for your buck. They are not too expensive and they work really well. They are not as re-buildable as XO or as light but they work really well. They don't seem to hold up quite as well as I would like though. They have a tendency to get bent up pretty easy and the cogs get squeaky very quickly (particularly on muddy rides) and they seem to stay that way no matter how well you rebuild them.

I have gone through about 4 of these in the last couple years but I will keep getting them because they work so well.