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Eagle for the people.
When SRAM initially launched the Eagle 12-speed group, we were absolutely blown away by its massive 500% gear range—the same you'd find with many 2x drivetrains—all without dealing with the added weight or annoying miss-shifts of a pesky front derailleur. The catch was its astoundingly high price, which relegated this fancy drivetrain to the likes of magazine testers and premium builds from the leading bike manufacturers, but left us regular trail riders to sit aside and wait for a budget-friendly option to emerge. Seeing the need for an affordable entry into Eagle's numerous benefits in gear range and 1x shifting efficiency, SRAM created the GX Eagle 12-Speed Groupset for the needs of dedicated riders saving every last dollar for a reliable and efficient 1x12 groupset for their trusty trail bike.
The GX Eagle 12-Speed Groupset contains everything you'll need, besides a DUB bottom bracket and XD rear driver from SRAM, to hook up your trail rig with a crisp-shifting drivetrain across the widest range of usable gears possible on a 1x set-up. This specific group is specifically tailored to the wider axle spacing of modern BOOST machines with the included direct-mount crankset featuring a 52-millimeter chainline, as well as accommodating DUB bottom brackets with 22/24-millimeter spindle diameters. This GX Eagle 12-speed Direct-Mount Crankset is made from 7000-series aluminum for high levels of strength without blowing the bank on fancier carbon construction.
The plate-sized XG-1275 Cassette steals the show with its unbelievable gear range helping you power up steep climbs without ever wishing for a front derailleur or seeking out just one more gear. This cassette uses stamped steel cogs placed together with stainless steel pins, with the 50-tooth cog retaining its aluminum construction for weight savings. This construction technique makes it possible to keep overall costs down while retaining a durable cassette that shifts beautifully across its 10 to 50-tooth range. This cheaper price does come with a weight penalty of 93 grams, but saves you something in the range of $165 from the XO1 version (XG-1295) or an astounding $225 from the XX1 (XG-1299).
Besides the direct-mount crankset and 10 to 50-tooth cassette, you'll find the GX Eagle Rear Derailleur and 12-speed Trigger Shifter command precise, near-instantaneous shifts across the entire range with SRAM's X-Actuation technology. The rear derailleur's Roller Bearing Clutch prevents noisy drivetrain issues over rugged terrain where your chain would normally bounce around and slap the chainstays. Rounding out things out, we'd be amiss to forget the GX Eagle 12-speed Chain, which is the unsung hero of this group. This 12-speed chain employs solid pins to once again keep costs down, but uses SRAM's chrome hardened construction for a long-lasting chain that shifts cleanly and performs reliably in nasty conditions.
- Ditch the front derailleur for good with GX Eagle's 500% gear range
- Gx Eagle offer the benefits of 1x12 without the whopping pricetag
- 1847-gram total weight is only 14% more than pricier XO1 Eagle
- XG-1275 cassette with massive 50-tooth cog for spinning up climbs
- GX Eagle Direct-Mount Crankset for DUB bottom brackets and BOOST spacing
- GX Eagle Rear Derailleur with Roller Bearing Clutch for less chain slap
- GX Eagle Trigger Shifter with X-Actuation for quick, precise shifts
- GX Eagle Chain with solid pins and chrome hardened for longevity
- Item #SRM00C8
- Q & A
Eagle for the masses
- Familiarity: I've used it several times
All the function; fraction of price; modest weight penalty. 500% Eagle gear range for the masses. I bought this and used the money saved to upgrade to a lightweight wheelset.
Stellar Review from Singletrackworld
"The thing about the new GX Eagle drivetrain is that it just works. The shifting out back is smooth, and chain retention up front is impeccable. There are some differences in ergonomics between the GX shifter and SRAM’s more expensive options, but it’s the sort of you-wouldn’t-know-till-you-tried-it thing. The cassette is an incredible piece of engineering, and particularly when it comes in at nearly a third of the price of the XX1 cassette."
I have a 2015 specialized stumpjumper with Hubs Specialized Hi Lo Disc, Sealed Cartridge Bearings, Thru-Axle Front // Specialized Hi Lo Disc, 4 Sealed Cartridge Bearings, Thru-Axle Rear. What do I need to convert this to the 1-12?
Hello, I want to install a sram eagle gx on a trek fuel ex 8 2014 what Hub and bottom bracket do I need to buy in addition to the drivetrain ?
I have a Shimano 26" XT rim/XT M788 Hub, do you know if there is anyone that makes the XD Driver for that hub? I tried to reasearch it but it doesnt' seem like one is made. I'd love to get this groupset but I'm afraid it won't work without replacing the hub.
You could buy the GX groupset and instead of buying the GX cassette, sunrace makes an 11-50 tooth cassette that would work with a normal driver body.
Will this crankset work with a non-Boost frame? I currently run a 2x10 XX Crankset (GXP) with a 156 Q factor. Will the XD free body hub work on all wheel sets?
You will want to use a non-boost crankset. I am happy to make that change for you within the whole groupset if you'd like! Shoot me an email at firstname.lastname@example.org. Most wheel manufacturers make an XD free hub body so that you can run the Eagle cassette. I would also be happy to track that down with your wheel specs.