You read that correctly – SRAM has just unveiled its fourth – and cheapest – 1×12 Eagle drivetrain. Badged with the NX Eagle label, this new 12-speed groupset slots in underneath the GX Eagle, X01 Eagle and XX1 Eagle groupsets. However, it makes use of cross-compatible technology, which means you’ll be able to mix and match components between the different levels.
To get the price down, NX Eagle makes use of more modest materials and a simpler cassette design, which has helped to bring the list price down to £365. That’s for the entire drivetrain, including the crankset, chain, cassette, shifter and derailleur. Only the bottom bracket needs to be purchased separately, which is pretty standard for groupsets these days, since there are so many BB standards on the market.
To put that price into perspective, an entire NX Eagle drivetrain costs less than a single XX1 Eagle cassette. It also comes in 130 quid less than an equivalent GX Eagle groupset, with a large portion of that coming from the cheaper cassette.
While it doesn’t have the same 500% gear range as SRAM’s other Eagle cassettes, the NX Eagle cassette does feature 12 sprockets, and it is designed to fit onto a standard splined freehub body. That means the smallest cog is an 11T, rather than the 10T cog you’ll find on the pricier cassettes. The NX Eagle’s 11-50T ratio delivers a 454% gear range, which is still enormous.
Because of the price and the cassette design, this should make NX Eagle a compelling upgrade for riders on existing 9/10/11-speed drivetrains who are on the lookout for a wide-range 1x drivetrain. Indeed we expect to see bike manufacturers speccing a lot of their 2019 model year bikes with NX Eagle.
I’ve been riding an NX Eagle groupset for the past month, and you can read my review of the 1×12 drivetrain here. Otherwise read on for further details, specs and pricing information on each of the components that make up the NX Eagle drivetrain.
SRAM NX Eagle PG-1230 Cassette
- 11-50T with a 454% gear range
- Ratio: 50-42-36-32-28-25-22-19-17-15-13-11
- Designed to fit standard Shimano HG freehub bodies
- Construction: Stamped steel (8 smallest cogs), high-strength steel (4 largest cogs)
- Alloy spider for four largest cogs
- Claimed weight: 615g
- RRP: £99
SRAM NX Eagle Derailleur
- X-Actuation pull ratio for use with SRAM 12-speed shifters
- X-Horizon design accommodates 10-50t and 11-50t cassettes
- Type-3 roller bearing clutch
- 12T upper & 14T lower pulleys
- Steel jockey wheel cage
- Cage Lock
- Claimed weight: 339g
- RRP: £106
SRAM NX Eagle Trigger Shifter
- X-Actuation pull ratio for use with SRAM 12-speed derailleurs
- Zero Loss cable actuation for quick engagement
- Available in standard and MatchMaker X clamp options
- Also available in an e-MTB specific option with single shift action
- Claimed weight: 112g
- RRP: £34
SRAM NX Eagle Crankset
- 6000 series forged alloy crank arms
- Alloy DUB spindle
- Steel direct mount X-Sync 2 chainring
- Boost and non-Boost offsets available
- 165mm, 170mm & 175mm crank arm lengths available
- Claimed weight: 705g (175mm w/32T chainring)
- RRP: £104 – £120
SRAM NX Eagle Chain
- Compatible with all SRAM Eagle 1×12 drivetrains
- Powerlock connector for easy installation
- Claimed weight: 278g
- RRP: £26
For more information on the new NX Eagle groupset, head to the SRAM website, or hit up UK distributor, ZyroFisher, for further details. Otherwise, check out our first ride review to hear more about how the latest 1×12 drivetrain performs on the trail.