SRAM GX Eagle DUB Groupset 12 Speed 10-52T 170mm Lunar - Complete 1x12 MTB Drivetrain Kit | Cycling Gears Hub

Upgrade your entire mountain bike drivetrain with the SRAM GX Eagle DUB Groupset, a complete 1x12 speed drivetrain kit engineered to deliver optimal performance, durability, and simplicity on the trail. This groupset combines the full-featured capability of SRAM's Eagle technology into one comprehensive package, giving riders everything they need to convert their bike to a modern, wide-range single chainring drivetrain without the complexity of a front derailleur.

Complete Groupset Package:
This SRAM GX Eagle DUB Groupset comes fully equipped with a rear derailleur, a 1x12 speed trigger shifter with discrete clamp, a DUB crankset in 170mm length, a direct mount 32T X-SYNC chainring, a GX Eagle 12 speed chain, the XG-1275 10-52T cassette, and a chain gap gauge for accurate setup. This all-in-one package eliminates the guesswork of sourcing individual components separately, making it an ideal solution for a complete drivetrain upgrade or a full build from scratch.

Wide Range 520 Percent Gearing:
At the heart of this groupset is the SRAM XG-1275 cassette, featuring a 10-52T gear range that delivers an impressive 520 percent gear spread. This expanded range provides more comfortable climbing on steep, technical terrain while still offering strong top-end speed on flats and descents. The cassette uses SRAM's FULL PIN technology, combining lightweight stamped steel cogs with high-strength stainless steel pins for a component that is both durable and efficient. This cassette requires an XD driver body for installation.

GX Eagle Rear Derailleur:
The included GX Eagle rear derailleur features an updated cage architecture designed to improve chain management and shifting consistency across the entire gear range. It is compatible with both 10-52T and 10-50T cassette options, giving riders flexibility if they choose to switch cassette configurations down the line. The derailleur incorporates SRAM's Roller Bearing Clutch and X-Horizon design, which work together to reduce chain slap and maintain quiet, controlled chain movement even over rough and technical trail sections.

DUB Crankset and Chainring:
This groupset includes a durable DUB crankset in 170mm crank arm length, paired with a direct mount 32T X-SYNC chainring. The DUB, or Durable Unified Bottom Bracket, design uses a single spindle standard that is compatible across multiple bottom bracket types, simplifying compatibility for a wide range of mountain bike frames. Each tooth on the X-SYNC chainring is precisely engineered to work seamlessly with the inner and outer links of the chain, ensuring complete chain control and retention even on rough, technical trails. Please note that the bottom bracket itself is sold separately and is not included in this groupset.

Trigger Shifter and Chain:
The included 1x12 speed trigger shifter puts complete control of your gear selection into the thumb of one hand, allowing for quick, intuitive shifting during technical trail riding. The groupset also comes with a dedicated GX Eagle chain, featuring hollow pin construction across 126 links, engineered to deliver smooth, efficient, and reliable shifting performance in combination with the rest of the Eagle drivetrain components.

Eagle Ecosystem Compatibility:
This groupset is part of SRAM's broader Eagle drivetrain ecosystem, meaning it is 100 percent compatible with other components across SRAM's Eagle lineup. This gives riders the freedom to mix and match individual components, upgrade specific parts over time, or maintain a fully curated build using SRAM's dedicated Eagle Colorsystem, which includes this distinctive Lunar colorway across the groupset.

Ideal Use Cases:
This groupset is ideal for mountain bikers building a new bike or upgrading an existing drivetrain to a modern, wide-range 1x12 speed setup. It is particularly well suited for trail riders and all-mountain cyclists who want dependable, all-day performance with the climbing gears needed for steep technical terrain, combined with the durability to handle demanding trail conditions ride after ride.

Key Specifications Summary:
Brand: SRAM
Series: GX Eagle
Product Type: Complete Drivetrain Groupset
Number of Speeds: 12 Speed (1x12)
Cassette: XG-1275, 10-52T (520 Percent Range)
Crank Arm Length: 170mm
Chainring: 32T, Direct Mount, X-SYNC
Bottom Bracket Interface: DUB (Sold Separately)
Chain: GX Eagle, Hollow Pin, 126 Links
Rear Derailleur: 12 Speed, Long Cage, 52T Max
Shifter: 1x12 Speed Trigger with Discrete Clamp
Color: Lunar
Included Accessory: Chain Gap Gauge
Cassette Driver Compatibility: SRAM XD Driver Body
Technology: FULL PIN Cassette Construction, Roller Bearing Clutch, X-Horizon Design, X-SYNC Chainring
Intended Use: Trail and All-Mountain Riding

The SRAM GX Eagle DUB Groupset delivers a complete, wide-range 1x12 speed drivetrain solution with a 520 percent gear range, durable Eagle ecosystem components, and reliable shifting performance, making it an excellent choice for mountain bikers seeking a full drivetrain upgrade in a distinctive Lunar colorway.