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GX-1400 1x X-SYNC™ Crankset


The SRAM GX crankset delivers consistent performance every time out. Featuring SRAM’s X-SYNC™ tooth profile, the GX crankset is engineered for complete chain control. Each tooth’s thickness is CNC machined to work seamlessly with the chain’s inner and outer links. And with five available chainrings, you can personalize your gear range to match the way you ride.

  • CNC machined 7075, two-tone anodized X-SYNC™ chainring—an integral component of the SRAM 1x™ drivetrain
  • Our Open Core Technology (OCT™) cranks are stiffer, stronger, and lightweight beyond any solid forged crankset.
  • X-SYNC™ tall, square tooth design provides maximum chain control
  • Sharp, narrow tooth profile and rounded chamfer edges help manage a deflected chain
  • Mud-clearing recesses for the inner chain links and rollers
  • Chainring guard option
  • BOOST™ 148 compatible
  • Fat bike crank option


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Some variations of this product featured on this page are not available for purchase and are installed on bicycles as original equipment only. See your dealer for details.

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Compatibility Notice
11-Speed Product Compatibility Information SRAM 11 speed components were designed to be paired with matching SRAM 11 speed components to ensure proper function. We can only guarantee the performance when used with the correct SRAM branded components.
SRAM GX-1400 1x X-SYNC™ Crankset - Red


Specifications for GX-1400 1x X-SYNC™ Crankset

Arm MaterialOpen Core Technology™ AL
Weight680g (24mm spindle, 175mm, 32t)
Available Arm Lengths170mm, 175mm
Available Ratios30, 32, 34, 36, 38
ColorsRed, Black
GuardChainring guard available
Bottom BracketBB30, PressFit 30, GXP®, PressFit GXP®
ChainringsX-SYNC™ CNC machined chainrings
Recommended ChainPC-X1
Interface24mm, 30mm
Technology Highlight(s)X-SYNC™, OCT™ (Open Core Technology), GXP®, BB30, PressFit GXP®, PressFit 30, BOOST™
OptionsBOOST™ 148
OtherChainline - 49.0mm, 52.0mm, 66.5mm
Retail AvailabilityMay 2015



Besides serious weight savings, this bottom bracket means narrow Q-factor, more ankle clearance, greater bearing durability and stronger crank construction. 

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With revolutionary advancements in bicycle componentry, like SRAM’s XX1, X01 and X1 drivetrains, mountain bike designers have been given almost limitless freedom to focus solely on the performance of the bike. Each advancement demands that the entire package works flawlessly. Aggressive trail and enduro riders have been increasingly enjoying the benefits of larger wheels, but many still view 27.5" and 29" wheels as a possible weak link. Which is why SRAM has developed an open standard with Boost compatible components for SRAM drivetrain, hubs and RockShox forks.

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GXP’s Gutter Seal design cuts friction and weight—improving both feel and performance.

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OCT (Open Core Technology)™

To fabricate our Open Core Technology a single mass of premium alloy is pushed, pulled and squeezed into a hollow crank arm. During our exclusive process the magic happens, producing supreme strength while remaining weight-conscious. We may have not been the first to fabricate hollow crank arms, but we are the best by yielding the highest stiffness-to-weight ratio out there. Our OCT cranks are stiffer, stronger, and lightweight beyond any solid forged crankset and when we use our AL-7050-TV to fabricate with OCT the results are impressive.

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A variant of the external GXP bottom bracket, PressFit cuts weight by up to 40 grams and eases installation by allowing you to press the bearing cups into the frame instead of threading them. It requires no change to the crank spindle length and diameter.

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Pressfit 30™

This is a new design led by SRAM. It’s all the best from BB30 and Press-Fit bottom brackets in one captivating package. This bottom bracket is designed for 30mm spindle cranksets. The key difference with PressFit 30 is how the bearings are fitted into the frame. Bearings are housed in nylon cups which will be pressed into the frames bottom bracket shell. PressFit 30 will feature an integrated seal, pre-assembled into the cups, to further prolong bearing life. Frames will need a 46mm inner-diameter bottom bracket shell to accommodate this system. PressFit 30 for road will require a 68mm wide shell while PressFit 30 for MTB will require a 73mm wide shell. Advantages: Huge weight savings, narrow Q-factor, more ankle clearance, greater bearing durability, stiffer/stronger crank construction, simple installation. Allows for larger diameter frame tubes increasing frame stiffness. Drawbacks: Still searching.

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SRAM X-SYNC™ 1x chain rings provide the highest level of performance and durability. The SRAM X-SYNC™ tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC™ chain rings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC™ rings are an integral part of the SRAM 1x™ drivetrain.

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Documents Available for GX-1400 1x X-SYNC™ Crankset

See more documents available for SRAM MTB products.

SRAM Warranty (2.19 MB, PDF)

28 Pages Updated June 16, 2015



Industry Reviews

SRAM GX 1x11 transmission first ride | Bike Radar

"Essentially a simpler and slightly heavier version of X1, you get the same performance at a fraction of the price. This is the one we’ve been waiting for."

by Oli Woodman,, April 2, 2015
SRAM 1x11 drivetrain | long-term test | Enduro Magazine

The German Enduro Magazine published a long-term test about the SRAM 1x11 drivetrain. With each of these group sets having ticked off several thousand kilometers on their test fleet, they thought it was time to see how they were faring. The 1x11 drivetrains have been out on all terrains for serious testing - from the Bavarian mountains to the flowing trails around Stuttgart, and not forgetting the filthy wet lines of Scotland

by Christoph Bayer,, September 24, 2015
SRAM GX 1x11 | Tested |

"In the case of the 1X11 group set that we tested we consider it a game changer. It is a prime example of trickle down technology. SRAM’s 1X11 drivetrain started out as something that not many could afford but everyone lusted over. Now it almost doesn’t make sense not to run it. Most consumers love the idea of being liberated from the front derailleur. Less cables, less stuff on your bar, less noise and less to think about. It’s also incredibly durable. In 6 months of aggressive riding in mixed conditions, we still haven’t worn out the chain or cassette."

by Ian Collins,, November 24, 2015
SRAM GX Reviewed on Bike Rumor | "The drive train you have been waiting for."

"That’s really the reason why this group is such a home run – even the best cassette and derailleur adapters can’t touch the shifting performance of a dedicated wide range group like GX 1.... but if given the choice between adapters and a full group? This wins all day."

by Zach Overholt,, December 4, 2015
SRAM GX reviewed |

"GX offers nearly identical performance to SRAM's higher end offerings at a much lower cost...This is the trickle-down group that riders have been waiting for, and there's no doubt that we'll be seeing it specc'd on plenty of complete bikes in 2016."

by Mike Kazimer ,, December 9, 2015
SRAM GX reviewed |

"We say it a lot, but right now is a really good time to be a mountain biker. SRAM’s excellent GX drivetrain is just further proof for that claim."

by Aaron Chamberlain ,, December 9, 2015
SRAM GX 1x awarded Best Value Product in 2015 |

"When SRAM released its original XX1 drivetrain, it made a 1x drivetrain a realistic alternative to riders who needed a wide gear range...But their new GX drivetrain offers similar levels of performance to SRAM’s high end 1x group sets, but retails for nearly half the price."

by Saris Mercanti,, December 22, 2015
SRAM GX awarded Editors Choice 2015 | Dirt Rag

"Last year, Dirt Rag Editor-in-Chief Mike Cushionbury awarded SRAM’s X01 drivetrain his Editor’s Choice honors because it offered similar performance to the flagship XX1 group at a reduced cost. With GX1, SRAM has again significantly cut the price of entry to 1×11 ownership."


"If I were building a bike or planning to buy a new one, I’d be targeting GX 1×11 for certain. This is the pinnacle of the current performance-to-value ratio right now."

by Justin Steiner,, December 17, 2015
SRAM GX reviewed | Bicycling Magazine

"GX shifting felt clean and responded to the same light, quick touch as its premium counterparts."


"Changing gears on the trail should always be such a nonissue, and now it can be for more of us."

by GLORIA LIU, Bicycling Magazine , January 6, 2016
SRAM GX | Best of 2015 |

"Plenty of abuse has been heaped upon that drivetrain: grime and snow didn’t affect the shifting; Whistler bike park’s infamous mud was simply shrugged off; imperfect shifts didn’t expose a lack of stiffness; and I haven’t had to monkey around with it to keep the shifting precise and smooth. It’s almost embarrassing how well the drivetrain is still working despite a lack of maintenance, other than infrequent de-greasing and cleaning."

by Pete Roggeman,, December 31, 2015
SRAM GX Wins 2015 Design and Innovation Award | Enduro Mag

"The SRAM GX group set brings the same high-performance shifting and wide-range cassettes to a price point that make it affordable for the average rider. GX shares the same reliable function as its more expensive siblings, with only a small increase in’s near perfect. 1x drivetrains are simple, efficient, and the perfect solution for trail riding; for the rider looking for performance on a budget, the new SRAM GX is a revelation.

by Enduro Mag,, January 1, 2016
SRAM GX 1x reviewed |

"This season, I’ve ridden both 1x GX and Shimano XTR extensively and I’m going to have to be honest here and say that, in my experience, the budget-priced GX kit simply outperforms the other guys top-shelf kit hands-down. Shifting accuracy, speed and feel are far and away better in every respect. I think it’s fair to say that if you want to get a 1x drivetrain, stick with the originals, folks."

by JASON MITCHELL,, August 15, 2016