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Descendant Carbon Eagle DUB Crankset - Boost

5 out of 5 stars
3 Reviews
Current price: $154.00 - $197.91 Original price: $280.00
Up to 45% off



Why We Like The Descendant Carbon Eagle DUB Crankset

Just because you like to charge head first in to chunky rock gardens doesn't mean your crankset has to scale in at sky-high downhill-grade weights. Let the Truvativ Descendant Carbon Eagle DUB Crankset with Boost spacing shed some grams on your Eagle setup, while giving you the heavy-metal feel that you trust for busting out enduro laps. This crankset combines Truvativ's proprietary carbon fiber crank arms with the new DUB spindle, compatible backwards and forwards with just about any bottom bracket standard you can dream up, to provide a solid ride feel that doesn't waiver under pressure.

DUB technology takes the ever changing bottom bracket standards and throws in a uniform approach, offering a spindle that securely fits into any SRAM DUB bottom bracket, which is available in an array of standards, from English threaded, to PF30 and BB30, with more on the way. This means that regardless of the bottom bracket shell standards you're running, you'll be able to pair this wide and stable spindle in a bottom bracket that fits your bike just right. Because the spindle and bottom bracket are designed to pair together, you'll find a better seal against contamination, making it an ideal setup for those of us who ride in sandy, muddy, or wet conditions.

The Descendant Carbon Eagle crankset also gives you the benefit of running with an Eagle drivetrain. It uses SRAM X-Synch 2 technology, with more aggressive teeth that are designed for improved chain retention, and a smoother, more efficient pedal stroke feel. It's is compatible with any level of Eagle from GX to XX1, as long as its paired with an Eagle chain. This makes for a seamless interface, with the svelte look of carbon to give you XC weights with enduro-ready durability.


  • An enduro-ready crankset that minimizes weight
  • Truvativ carbon fiber is incredibly stiff and durable
  • DUB spindle is compatible with tons of BB standards
  • Paired with a DUB BB, spindle has a better seal for longer life
  • Ride it on your boosted bike with offset chainring
  • SRAM's X-Synch 2 chainring for better chain retention
  • Fully compatible with any Eagle 1x drivetrain
  • Item #TRU001M
Arm Material
carbon fiber
Arm Length
165mm, 170mm, 175mm
Chainring Sizes
Bolt Circle Diameter
BB Type
Q Factor
49.0mm, 52.0mm, 55.0mm
Compatible Components
SRAM DUB bottom brackets, all levels of Eagle drivetrains
Claimed Weight
[175mm, 32t] 1lb 3.6oz (555g)
mountain biking

Overall Rating

5 based on 3 ratings

Review Summary

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

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

May 30, 2021

Excellent performance at a great price

I've used it once or twice and have initial impressions

Great Crankset! They have been an excellent upgrade for my bike.

Aaron B

Originally reviewed on Backcountry.com

5 out of 5 stars

January 10, 2021

Low key graphics and great performance

I've put it through the wringer
Size Bought:
5' 9"

These replaced GX alloy cranks. The ride improvement was noticeable. If you want the great performance of a carbon crank without spending a ton this is the one. Graphics are low key in a good way, the cranks are very good looking. They deliver the stiffness to improve power transfer into the drivetrain, I agree with another reviewer that they have some damping qualities as well. If you are a smaller rider you might not notice the difference between alloy and carbon but for those on the larger side when you get out of saddle and crank the difference is obvious. I will buy these again for a hard tail build I am working on.

Jeffrey S
5 out of 5 stars

December 29, 2020

Durable, light enough, chatter dampening

I've used it several times
Size Bought:

Carbon Descendant crank that's uber-stiff and really does help mute the chatter through your feet and keep them planted. I'm a 32" inseam on a large v3 Bronson and moving to 170mm has helped me spin a higher cadence while climbing. Already have the DUB system, so these with some crank boots was all I needed. Could not be more pleased with this crankset

Thomas L