UNIQUE. Developed with a unique 1X drive philosophy, SRAM XX1 is simpler, lighter and more resilient than any other drive. No matter where you are and what's in your way: SRAM XX1 is UNCONDITIONAL. Designed for maximum chain control, each sprocket's sprocket is precisely CNC machined to perfectly support the chain.
Arm material: carbon crank arms
1X drive philosophy
CNC X-SYNC Direct Mount Chain Strap
Spider made of forged aluminum
Weight: 645g (GXP, 175mm, 32-teeth non-fatbike)
Other: will be delivered without bottom bracket
X-SYNC ™: SRAM's X-SYNC ™ 1x Chainrings deliver the highest performance and durability. The long SRAM X-SYNC ™ serrations grip the chain earlier than traditional triangular teeth. The sharp and narrow tooth profile and the rounded oblique edges support the chain guide. To provide the best possible performance even on muddy terrain, the X-SYNC ™ chainrings have recesses to remove debris and mud. The X-SYNC ™ chainrings developed in Germany are an important part of the SRAM 1x ™ drive.