Exogram: The new Hollow Carbon Construction starts in the crank arm and extends into the cranks’ spider. It maximizes the stiffness to weight ratio.
X-GlideR Chainrings: The chainrings are designed for an optimized shifting performance with the Yaw front derailleur. The stiffer rings (5mm 7075-T6 aluminum CNC-machined) feature upshift rivets with an advanced design adopted from SRAM XX. CNC machining allows for precision control of each tooth shape, ramp, and nearly every shifting feature of the chainring. Chainrings, chain, and front derailleur are designed as a single integrated system for optimized performance.
BB30: Besides serious weight savings, this bottom bracket means narrow Q-factor, more ankle clearance, greater bearing durability and stronger crank construction.
Yaw: With a front derailleur cage that rotates to maintain a consistent angular relationship with the chain, Yaw technology eliminates the need for shifter trim. As a result, shifts feel more direct and precise, delivering an unmatched performance advantage in front shifting.
• Compatible with SRAM RED eTap components
• 130 BCD
• Exogram™ technology uses a large, hollow cross section all the way to the spider, minimizing weight while maximizing stiffness
• Our stiffest crank ever
• Hidden bolt pattern leverages the characteristics of carbon fiber while presenting a sleek appearance
• Stiffer X-GlideR™ chainrings feature thicker construction and advanced shift timing pins and ramps, which are optimized for shifting with the Yaw™ front derailleur
• Materials: Carbon, Machined Alloy
• Weight (grams): 557
• Arm Length: 172.5 mm
• Ratio: 52/36T
• Compatibility: SRAM RED® & SRAM Force Yaw™ Front Derailleur, SRAM RED® 22 & PC1170 chains
• Finish: Carbon
• Technology: Exogram Hollow Crank Arm & Spider, X-GliderR Chainrings, Hidden Bolt Spider,