Sram XX1 Eagle DUB FAT4 30D Cranks Black

True competitors are always looking for a performance advantage - a relentless pursuit of lighter, stiffer, stronger and more durable equipment. To create the best drivetrain possible, we re-examined and redesigned our crankset design. Our new XX1 Eagle CARBON TUNED crankset is our lightest, stiffest and strongest crankset yet. SRAM DUB technology improves this by simplifying the relationship of the axle to the bottom bracket and redefining the measure of durability. DUB engine cranksets mean simplicity, compatibility and durability.

DUB technology offers the lightest, stiffest and strongest crankset available

New SRAM CARBON TUNED crank technology provides extreme stiffness and light weight

X-SYNC 2 platter delivers significantly quieter performance, better mud clearance and outstanding durability

Technology:

• Boost:
  • With revolutionary advances in bicycle components, such as SRAM's XX1, X01 and X1 drivetrains, mountain bike designers have been given almost unlimited freedom to focus solely on bike performance. Each advancement requires the entire package to work perfectly. Aggressive trail and enduro racers are increasingly enjoying the benefits of larger wheels, but many still view 27.5' and 29' wheels as a potential weak link. That's why SRAM has developed an open standard with Boost-compatible components for SRAM drivetrains, hubs, and RockShox forks.
• Carbon Tuned:
  • Strength and rigidity where you need it, light how you want it. SRAM's proprietary carbon design increases thickness and stiffness in critical stress areas. The tapered and stepped carbon architecture ensures the greatest weight savings without compromising strength.
• DUB:
  • The relationship between the bottom bracket axle and the bearing is the core of DUB technology. It's where rigidity meets durability. We took a step beyond conventional thinking and made everything simpler and better integrated the relationship between the chainring, crank, spindle and bottom bracket. It's this clear system approach that equates to better powertrain performance.
• X-Sync 2:
  • X-SYNC 2 Eagle is the next evolution of SRAM X-SYNC technology. Aggressive tooth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long life, the X-SYNC EAGLE design reduces friction and the build-up of mud, grit and grime.

Characteristics:

• Crank material: Carbon composite - hollow core
• Chairing material: Aluminum CNC Eagle SL
• Weight: 422g (175mm, 32t)
• Compatibility: All levels of Eagle drivetrain systems, All major bottom bracket standards.
• BCD: Direct mount
• Recommended chain: Eagle chain only
• Featured Technology: X-SYNC2, CARBON TUNED, Eagle, FAT4