SRAM NX Eagle Groupset - Thunder Mountain Bikes
SRAM NX Eagle Groupset - Thunder Mountain Bikes
SRAM NX Eagle Groupset - Thunder Mountain Bikes
SRAM NX Eagle Groupset - Thunder Mountain Bikes
SRAM NX Eagle Groupset - Thunder Mountain Bikes
SRAM NX Eagle Groupset - Thunder Mountain Bikes
SRAM NX Eagle Groupset - Thunder Mountain Bikes

NX Eagle Groupset

SKU: NXCustom165NB

Regular price $404.00 Sale price$339.99
Shipping calculated at checkout.
Crank Arm Length
Hub Spacing/Chainring Teeth
Cassette Range
  • In stock, ready to ship
  • Backordered, shipping soon
  • Free shipping on all orders $59+

The NX 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, designed to be durable enough to withstand the increased demands of E-MTB applications and a perfect solution to heavy-duty use and abuse.


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

SRAM NX Eagle DUB Crankset with chainring

  • Hub: 135/142mm, 141/148mm, 170/177mm
  • Chainring teeth: 32 (30t for Fat Bike cranks)

SRAM NX Eagle Rear Derailleur:

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

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 NX 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 items 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 $59 are eligible to ship for free via an economy ground option of our choice.

Most bikes ship free within the continental US. Bike shipping to AK, HI, or PR is $250.

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.

Component & Gear Returns

Returns 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.

Bike Returns

Returns or exchange requests for 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.

Return Shipping

Customers may choose to use our provided flat-rate return shipping label at $9, or choose a carrier of their choice to handle their product return.

The $9 flat rate label will be deducted from the refund issued for the return. You can either print this label after requesting a return from the Order History in your Account profile, or you can request that we email you the label.

For all other return shipping methods, please email us at after submitting your return request so that we can confirm the shipping information you should use to return your item(s).


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.


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.


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

(928) 282-1106   |

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Customer Reviews

Based on 1 review
John R. (Indianapolis, US)
NX Eagle Groupset replaced Sram Descent

Converted my Rossignol DH 7 speed bike to a 12 speed NX Eagle. Very happy with it so far, bike shifts good, climbs great and still can bomb downhills at faster than speeds I can ride lol. Very happy with purchase! I keep the Descendant cranks on bike, but love the 32T chainring and rear cassette now, was tired of pushing my bike with the old set up hills.

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