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  • SRAM X-Sync 2 Eagle 12-Speed Direct Mount Chainring - Boost
  • SRAM X-Sync 2 Eagle 12-Speed Direct Mount Chainring - Boost
  • OptionsSRAM -
  • SRAM -
SRAMX-Sync 2 Eagle 12-Speed Direct Mount Chainring - Boost
Sale $79.18 - $99.00

Item # SRM00AI

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  • Black, 30T/3mm Offset ($79.18)
  • Black, 32T/3mm Offset ($99.00)
  • Black, 34T/3mm Offset ($89.10)
  • Black, 36T/3mm Offset ($99.00)
  • Black, 38T/3mm Offset ($99.00)
  • Gold, 30T/3mm Offset ($99.00)
  • Gold, 32T/3mm Offset ($99.00)
  • Gold, 36T/3mm Offset ($99.00)
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Item # SRM00AI


After putting SRAM's OG X-Sync chainring through its paces and confirming its ridiculously good chain management properties, we're excited to see SRAM's next generation X-Sync 2 arrive on the scene. Designed to pair with SRAM's groundbreaking one-by 12-speed Eagle drivetrain, the X-Sync 12-Speed Direct Mount Boost Chainring changes things up with claims of improved durability and even better chain control. As with the original design, each tooth is CNC-machined to support the chain's inner- and outer-link widths, providing a variable thickness from tooth to tooth so the chain and chainring effectively lock together as you pedal while also clearing mud and other debris with ease.

The major departure in design lies in the tooth shape. Where the original X-Sync teeth took on a boxy shape, X-Sync 2 is narrower to accommodate the 12-speed Eagle chain and features teeth that more closely resemble those of a shark. Boasting aggressive profiling, these teeth hold the chain securely in place like, well, like a shark's tooth digging into something. The key difference being, of course, that the Eagle chain is designed to accommodate the ring's teeth, while chances are good that a real shark's teeth will cause some pretty—err—dire compatibility issues with whatever they happen to get a hold of.

The benefits of this new profile aren't just limited to its chain retention ability or providing an opportunity for us to write gratuitously about sharks. It mimics the wear profile seen in the original X-Sync teeth for increased durability, and it also features edge shaping to help prevent chain suck over time. The direct-mount interface also makes swapping rings a breeze, giving quick flexibility to adapt to different shapes of terrain.

  • Integrates with SRAM's groundbreaking 12-speed Eagle drivetrain
  • 3mm offset for ideal chainline with Boost hubs
  • Updated tooth profile provides confident chain retention
  • Direct-mount interface makes changing rings a snap
Tech SpecsWeight
Tech Specs
Number of Rings
30 t, 32 t, 34 t, 36 t, 38 t
Compatible Components
SRAM XX1 Eagle, SRAM X01 Eagle, SRAM 11-speed drivetrains
Recommended Use
mountain bike
Manufacturer Warranty
2 years

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

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Black, 30T/3mm Offset
Black, 32T/3mm Offset
Black, 34T/3mm Offset
Black, 36T/3mm Offset
Black, 38T/3mm Offset
Gold, 30T/3mm Offset
Gold, 32T/3mm Offset
Gold, 36T/3mm Offset

Reviews & Community


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36 is better than 32

  • Familiarity: I've put it through the wringer

Moving up to the larger chainring with the eagle was one of the best additions for my bike. (Santa Cruz Blur) helps me climb more efficiently and now I can pedal going downhill. There is no penalty for granny gear either. As mentioned before the 36/50 combo works out to a better granny than 32/42. Definitely feels that way.

36 is better than 32

Eagle chainring

  • Familiarity: I've put it through the wringer

This is the chainring you need for SRAM's 12-speed Eagle drivetrain. It only works on SRAM direct mount cranksets. Chain retention, shifting, and longevity are excellent.

Eagle Talons

  • Familiarity: I've used it several times

Easy to install and provides solid chain retention. It's not the only option for your SRAM Eagle drivetrain (Race Face Cinch works well) but it's definitely the best available.


  • Familiarity: I've used it several times

I went from a 32 in the front on my 1x11 to a 36 in the front with eagle and the math says I still got an easier granny gear. Nuts!

is the 36T front and 50Trear same ratio as 32T f & 42T r (1x11).. I was thinking to change eagle but going for 34T

Swap Choice

  • Familiarity: I've put it through the wringer

There aren't many chainring options when it comes to SRAM Eagle. Mine come stock with a 30 and I wanted to run a 32 so i picked up a bonus ring. works great! it holds the chain really well. I haven't had any issues with it.

The best SRAM chain ring yet.

  • Familiarity: I've put it through the wringer

The best solution for anyone that wants to run anything bigger than a 30 tooth chain ring on their Sram mtn crank. SRAM has specifically designed a wide-narrow eagle tooth profile that keeps the chain really snug, allowing you to leave your chain keeper in the garage. I simply love this chain ring.


    Now you can choose what chain ring you want with your new eagle group. This chain ring has great retention, and will work with existing sram 11 speed groups.

    Just what you need for Eagle Cranksets

    • Familiarity: I've used it several times

    My bike came stock with a 30t, needed a 34t. Picked this up and installed it easily. Looks good, and does what it needs to do.