The 12t X-Sync Pulley wheels utilise SRAM's patented narrow/wide chainring technology to make this the most secure system going around

Chainring sizes - 30T

SLX BR-M7120

Aluminium barrel construction

SRAM Rival AXS E1 Shift / Rear Hydraulic Brake System - 12/13 Speed - Drop Bar - Right Envelope Shipping The 12t X-Sync Pulley wheelsHave it all: effortless one finger braking and fully wireless shifting with peerless ergonomics. They redesigned their controls with a higher brake lever pivot, so stopping from the hoods uses 80% less effort than before. But stopping is only one part of the equation, so they increased the range of their Reach Adjust while also eliminating the possibility of finger pinch under hard braking. Lighter weight, more powerful braking, and better fit for a