SX/NX Eagle Groupset
SX/NX Eagle Groupset
SX/NX Eagle Groupset
SX/NX Eagle Groupset
SX/NX Eagle Groupset
SX/NX Eagle Groupset

SX/NX Eagle Groupset

SKU: SXNXCustom165NB

Regular price $363.00 Sale price$279.99
Crank Arm Length
Hub Spacing/Chainring Teeth
Cassette Range
  • In stock, ready to ship
  • Inventory on the way
  • Free shipping on all orders $49+

The SX Eagle drivetrain system brings a wide range of gear choices engineered for simplicity and durability so riders can focus on what matters most—the ride ahead. German engineered and proudly bearing the SRAM Eagle stamp of approval, it is designed to be durable enough to withstand the increased demands of modern mountain bikes. The SX Eagle lineup is cross-compatible with much of the Eagle Ecosystem, making it easy to personalize and upgrade your ride when ready.


  • Includes:  Crankset, shifter, rear derailleur, cassette, and chain
  • Speeds: 12-speed
  • SRAM DUB Bottom Bracket Sold Separately

SRAM SX Eagle DUB Crankset with chainring

  • Hub: 135/142mm, 141/148mm
  • Chainring teeth: 32t

SRAM SX Eagle Rear Derailleur:

  • Cage: Long
  • Max Cassette Teeth: 50
  • Cable Pull Ratio: X-actuation

SRAM NX Eagle PG-1230 Cassette:

  • Gearing: 11-50t
  • Technology (Cassette): PG
  • Freehub interface: Shimano / SRAM HG
  • Cog Sizes: 11-13-15-17-19-22-25-28-32-36-42-50

SRAM SX Eagle Trigger Shifter:

  • Shifter Type: Trigger
  • Cable Pull Ratio: X-actuation
  • Cable Length (SL): 2200mm
  • Clamp: 22.2mm handlebar clamp

SRAM NX Eagle 12-Speed Chain:

  • Outer Link Finish: Polished
  • Color: Grey
  • Inner Link Finish: Polished
  • Chain Connector: PowerLock
  • Chain Length: 126 links
  • Pin: Solid Pin
  • PowerLock Link included

**Dub Bottom Bracket not included


  • Chain: 12-speed Eagle chains
  • Bottom Bracket: SRAM DUB bottom brackets
  • Pedal: All 9/16" pedals
  • Compatible Freehub: Fits Shimano/SRAM 8, 9, 10-speed freehub

Please reach out to us with any questions you may have on anything we sell. We want to make sure you get the right part the first time. Our lifelong riders at Thunder Mountain Bikes are knowledgeable and would love to talk to you!


We currently offer both economy and expedited shipping options though FedEX and USPS. 

Orders totaling over $49 are eligible to ship for free via an economy ground option of our choice. 

If you're in need of something super-quick, please contact us directly. We may be able to overnight your order with an additional fee and depending on your location. 


Should there be an issue with the item you bought, or you no longer need your purchase, we will be happy to set up a return.

Returns or exchange requests for New or Used Bikes must be requested by emailing us at within fifteen (15) days from the date of delivery. Bikes must be in un-ridden condition. Custom-built bikes may not be returned. Returned bikes have a $200 restocking fee and the customer pays for return shipping.

Returns for most other items may be requested within sixty (60) days of the delivery date. All returned items must be received in new, unused, and uninstalled condition, with the original tags and labels attached and in the original packaging. We cannot accept returns on any items installed or show wear of any kind. 

Clearance and open-box items may not be returned. 


To request a return, please log in to your customer account by clicking the  customer account icon  Profile icon in the top right of any page or visit

1. In the Email field, enter your email address and click Continue.

2. In your email account, open the email sent from our store and copy the six-digit verification code included in the email.

3. Go back to the online store and enter a six-digit verification code to log in.

4. Find and click on the order that you want to submit a return for.

5. If your order has more than one item, select only the items you want to return.

6. Select a return reason and add a note for the store if needed.

7. Click Request Return.

Once your return request is approved, you will receive an email with shipping instructions and a return shipping label. 


We will process your return after we receive your returned item(s) and inspect the condition. Please allow at least seven (7) days from the receipt of your item to process your refund. We will notify you by email when your return has been processed.


If you receive defective or damaged products or if we sent you the wrong products, please contact us using the phone number or email below.


If you have any questions concerning our return policy, please contact us at:

(928) 282-1106   |

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Customer Reviews

Be the first to write a review