Shimano GRX 12 Speed Disc Brake Assembled Set - ST-RX825 - Left(Front)Experience seamless, wireless 12 speed shifting on your gravel or mixed terrain adventures with the Shimano GRX Di2 Dual Control Lever. Designed for enhanced security and control, the ergonomic lever boasts raised hoods, a textured grip, and a non slip brake lever. Its optimized hood bracket ensures perfect integration with flared handlebars, preserving the dedicated gravel third button. Expand your cockpit possibilities with compatibility for three

Compatibility:

Its lightweight construction enhances bike performance without compromising durability

Lithium Ion battery duration: 500km/month - 1500km

Elegant and streamlined form for more rear-tire clearance

Includes Shimano Quick-Link

Designed for road and gravel applications where every gram counts and comfort matters

tool-free installation with SnugTite stinger design delivering maximum speed

Direct mounting for an aero cockpit

narrow-tooth chainring technology provides maximum chain control

HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker

P1 Rim 2010-2011

aluminum pulley wheels with Grade 3 Silicon Nitride balls