About The SRAM GX Eagle 12-Speed 32T DUB Crankset
This SRAM GX Eagle DUB crankset listing offers three chainline versions: 49mm, 55mm and 56.5mm, each with forged aluminum arms and a 32T X-SYNC 2 direct mount chainring for 12-speed Eagle mountain bikes. Chainline is the choice that decides whether it works on your frame.
The listing covers 135/142mm, 141/148mm Boost and 157mm Super Boost hub standards across its versions. Lengths are 165, 170 and 175mm in 49mm and 56.5mm, and 165mm in 55mm. The bottom bracket is sold separately.
Who It's For
- Mountain bikers on SRAM Eagle 12-speed who know the chainline their frame specifies
- Frames built around 135/142mm, Boost or Super Boost rear hubs
- Riders who want a durable aluminum 1x crank with a 32T ring
- Consider a different crank if you don't know your required chainline yet, or your frame uses a non-DUB bottom bracket
What to Look For
- Chainline: 49mm, 55mm or 56.5mm. Check your frame maker's spec or measure your current crank before ordering.
- Spindle interface: SRAM DUB; bottom bracket not included.
- Length: 165, 170 or 175mm (55mm chainline offered in 165mm only).
Key Features
Forged 7000-series aluminum arms give the GX Eagle its reputation for durability on real trail use.
The SRAM DUB spindle runs in a DUB bottom bracket, sold separately. The bottom bracket depends on your frame's shell, not on the chainline you pick.
Each version carries a 32T X-SYNC 2 direct mount chainring designed for Eagle chains; SRAM says it runs quieter and sheds mud better.
Chainline positions the ring relative to the cassette. Picking the version that matches your hub standard keeps shifting smooth across the cassette and prevents chain rub.
Rider Intent Summary
- Biggest strengths: Three chainline versions under one listing, with tough aluminum arms and an Eagle-specific 32T ring.
- Tradeoffs: You must know your chainline to order correctly, the 55mm version only comes in 165mm, and the bottom bracket is extra.
- What makes it different: It covers non-Boost, Boost and Super Boost frames from one GX Eagle model.
Victory's Take
We'd only order this GX Eagle once the chainline is confirmed for your frame. Victory Bicycle Studio can check that for you, along with the right DUB bottom bracket.
Specifications
- Brand: SRAM
- Model: GX Eagle DUB Crankset
- Chainring: 32T X-SYNC 2, direct mount
- Chainrings: 1x, chain-retaining single
- Drivetrain speeds: 12
- Spindle interface: SRAM DUB
- Chainline options: 49mm, 55mm, 56.5mm
- Hub compatibility (across versions): 135/142mm, 141/148mm Boost, 157mm Super Boost
- Crank lengths: 165, 170, 175mm
- Arm material: 7000-series forged aluminum
- Color: Lunar (gray)
- Pedal thread: 9/16"
- Intended use: Mountain
- Bottom bracket: Not included
What you get

SRAM GX Eagle 12-Speed 32T DUB Crankset
Frequently Asked Questions
Do you offer free shipping?
We do offer free shipping on non-bike orders over $100. We do not offer free shipping for bicycles unless it is a one time promotion. Generally, bike shipping will cost $150 and that covers just the shipping of the bike with no assembly. If you were to bring that bike to your local mechanic or bike store, you would pay them their assembly fee. If you choose our Professional Assembly option for $200, our service technicians would assemble the bike before shipping and then re-pack the bike safely for transit. When you receive the bike you would attach the front wheel, attach the seatpost/saddle, and raise the handlebars and clamp them. Those three items do have to be detached to minimize or eliminate the chance of damage in transit.
How much does shipping cost?
For orders of parts, accessories, apparel, etc. on orders under $100, shipping is a flat rate of $9.99. Regular bike shipping without assembly is $150, bike shipping with Professional Assembly is an additional $200 (so $350 in total which includes the $150 of regular shipping). Our White Glove Delivery option is $699 and that will cover the assembly of the bike and our White Glove Delivery partner delivering your dream bike to your front door, ready to ride!
How can I track my order?
When you place your online order, you will receive an instantaneous email update with your order number and order details, and shortly after, you will receive a follow up order email with the tracking number for your order. If you still need assistance with your order, feel free to email us at online@victorybicyclestudio.com and we will respond asap.