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SRAM X0 9-Speed Rear Derailleur (discontinued)

Average User Rating: (Excellent)
2012 SRAM X0 9-Speed Rear Derailleur
 SRAM X0 9-Speed Rear Derailleur  SRAM X0 9-Speed Rear Derailleur  SRAM X0 9-Speed Rear Derailleur
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Great shifting from Sram

The Good:

Light, extremely crisp shifting, strong spring keeps the chain from slapping around, good looking

The Bad:

Price, but it's definitely worth it. The logo/decal rubs off after a couple of washes, unfortunately.

Overall Review:

Really crisp shifting, there is no lag at all. So precise. Work in all conditions, easy to service, very simple. Spares are readily available, but I have not had to order one. Great for any use. I use it on my 1X9 DH rig and it works perfectly. Very fast shifting.

Carbon/metal goodness

The Good:

Light, flawless shifting, looks amazing

The Bad:

Price but you get what you pay for

Overall Review:

After years of riding Shimano derailleurs I had the opportunity to finally ride a SRAM unit as it came on my slope bike. Simply looking at this derailleur you can see the quality and beautiful craftsmanship; this is almost more a piece of art than a bicycle component. There is something about that metal open cage and the carbon together that come together to create an amazing looking and performing derailleur.

I ran a 1x9 configuration and have no issues once it was setup, the shifting was flawless in all types of conditions, it didn’t matter if the derailleur was covered in dust or full of mud and even snow, it shifted without any issues. I wasn’t sure if the open design of the unit would cause more mud and grime to get stuck inside of it but it never seemed to become a problem and by having such an open unit it made cleaning and lubing the derailleur a breeze.

I only rode the derailleur for a couple of months so I can’t speak to a real longer term durability test but seeing how well it performed in the first couple of month I assume it would have worked and lasted just as well as any other higher end derailleur.


Product SRAM X0 9-Speed Rear Derailleur
Riding Type Cross Country, Trail, Freeride / Bike Park, Downhill, Dirt Jump / Slopestyle, Other
Speeds 9-Speed
Clutch No
Cage Length Short/Medium/Long
  • 0 lb 7.2 oz (203 g)
  • 0 lb 6.9 oz (197 g)
  • 0 lb 6.8 oz (192 g)
Miscellaneous Material: Aluminum Alloy Links and Forged B-Knuckle, High Strength Grilon P-Knuckle
Outer Cage: Directional Carbon
Inner Cage: 6061- Aluminum
Bearings: Sealed Bearing
Technology: 1:1 Actuation, DiRT Direct Route
Price $257
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