Блок передних звезд SRAM Red BB30 2x11-speed 52-36T

The SRAM RED crankset features a completely hollow construction all the way to the spider. Its hidden bolt pattern makes better use of carbon fiber to further improve stiffness and shed weight. As always, for seamless, flawless performance and Yaw compatibility, pair this crank with X-GlideR chainrings.

TECHNOLOGIES

GXP - GXP's gutter seal design cuts friction, durability and weight - improving both feel and performance.

Yaw - The front derailleur cage 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, more precise, and combined with the Red crankset and chainrings, delivers an unmatched performance advantage in front shifting.

X-Glider Chainrings - X-Glider Chainrings are designed for an optimized shifting performance with the Yaw front derailleur. The stiffer rings (5 mm 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. The chainring, chain, and front derailleur are designed as a single integrated system for optimized performance.

Exogram -The Hollow Carbon Construction starts in the crank arm and extends into the cranks' spider. It maximizes the stiffness to weight ratio.