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GX Eagle DUB Groupset - Boost

5 out of 5 stars
2 Reviews
Current price: $400.37 - $416.59 Original price: $587.00
Up to 32% off

Style & Size:


Why We Like The GX Eagle DUB Groupset

The benefits of 1x11 drivetrains were undeniable for riders who made the switch to a single-ring setup. Better chain retention, quieter operation, lower maintenance, and simplified shifting just made sense on the mountain bike side of things. The only downside was running out of gears, being forced to spin up a steep climb at an uncomfortable cadence or wishing you had a little more top end on fast fire roads and descents. When SRAM released the 12-speed Eagle group that all changed. The addition of a 12th gear and the dinner-plate sized cassette that came with it left some skeptical, but it gave us a 500% gear range that rivaled that of 2x systems, and provided some of the best mechanical shifting on the market. It was pricey at first, but then GX Eagle came onto the scene, bringing Eagle to the masses. This GX Eagle DUB Groupset includes everything you need to put Eagle on your trail bike, less a SRAM DUB bottom bracket and an XD driver for your hub.

This groupset includes the crankset, cassette, chain, rear derailleur, shifter, and b-gap adjustment tool. The crankset is made of 7000-series aluminum which is both light and strong, and helps keep the price of the groupset reasonable. It comes with a 3mm offset, Boost chainring for bikes with 12 x 148mm rear spacing. The crankset uses a DUB spindle, which SRAM created to be compatible with virtually any frame, provided you get the correct DUB bottom bracket (not included). SRAM claims the DUB spindle is stiffer than GXP, yet lighter than BB30, so combined with the increased compatibility it makes sense that they made the rolling change to DUB.


  • GX Eagle DUB groupset for your XC, trail, or all-mountain bike
  • GX Eagle offers the benefits of 1x12 without the hefty price
  • XG-1275 cassette has 500% gear range with 50t bailout gear
  • GX Eagle crankset for DUB bottom brackets and Boost spacing
  • GX Eagle rear derailleur with clutch for smooth, quiet shifting
  • GX Eagle trigger shifter for quick and precise shift response
  • GX Eagle chain with solid pins, chrome hardened for durability
  • Includes b-gap adjustment tool for setting up the derailleur
  • Item #SRM00E8
Rear Derailleur
GX Eagle 12-speed
GX Eagle 12-speed
GX Eagle DUB Direct Mount 12-speed Boost
Crank Arm Length
170mm, 175mm
Bottom Bracket
DUB (not included)
GX Eagle 12-speed
XG-1275 Eagle
Sprocket Range
10 - 52t
Compatible Components
SRAM XD Driver body (not included), Eagle 12-speed drivetrains
Recommended Use
mountain biking
Manufacturer Warranty
2 years

Overall Rating

5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 2 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

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5 out of 5 stars

October 21, 2022

Fantastic drive train

I've put it through the wringer

My third bike to covert to the GX Eagle. You can't beat the price and the whole thing is bulletproof. The paint and design on the cranks wear out quickly, so if that bothers you, put protection on before you ever ride.

Patrick C
5 out of 5 stars

May 21, 2020

Best drivetrain for the money

I've put it through the wringer

I have put over 3k miles on my original set and love it! Shifts great and the 1x makes life easy.

Katie W