SRAM GX Eagle 12-Speed Rear Derailleur

We’ve read the reviews across the web for the SRAM GX Eagle 12-Speed Rear Derailleur and summarize the results below:

Universal Ranking

PeakScore: 89 (out of 100)
User Rating: 4.5 stars 
Expert Rating: 4.5 stars

Number of Ratings Reviewed: 33

Pros & Cons

Reasons to buy:

User Reviews

  • Hi/Lo screws are easily adjusted.
  • Screw adjustment is easy to do and can be done very quickly.
  • Shifting gears is precise.
  • No reports of chain hopping.
  • Features a push-button cage lock to get the pulleys out of the way.
  • Ideal gear range, providing adjustability and customziation.
  • No reports of mis-shifting, promoting a smooth ride.
  • A great product at a great value.

Expert Reviews

  • More cost effective than the X01 and XX1 option for those on a price budget.
  • 500% gear range for flexibility.
  • Simplified shifting makes it easy and efficient.
  • Three arm-crank lengths are available.
  • 7000 series forge aluminum aids in saving money, making this a cost-effective choice.
  • Compared to the older model, this version has a new chain with pin construction and hard chrome casting, using higher-quality materials.

Reasons NOT to buy:

Expert Reviews

  • Some minimal weight gain from the previous model.
  • Doesn’t have expensive-looking carbon finishing.


The SRAM GX Eagle 12-Speed Rear Derailleur is an adjustable, easy-to-use, and customizable option that is ideal for those needing smooth-shifting and a cost-effective choice. The low-price doesn’t sacrifice high-quality materials, with this derailleur proving to be a reliable choice for any level of rider.


Note: User and expert rankings were reviewed across the web. Some expert reviews include these: 1, 2.