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the G4-X offers a performance-driven platform built to excel across diverse terrain
A refined stiffness profile delivers the “just right” ride feel
Shimano claims a substantial improvement in shift speed over the previous generation
Nonetheless
with a sleek
Shimano GRX ST-RX810 Shift/Brake Lever with BR-RX810 Caliper HSA/FSA the G4-X offers a performance-drivenThe Shimano GRX ST RX810 Shift Brake Lever with BR RX810 Caliper is a gravel focused hydraulic dual control system engineered for precise 11 speed shifting and consistent braking performance across mixed and unpredictable terrain. Developed by Shimano as part of its GRX platform, it is designed specifically for riders who split time between pavement, gravel roads, and rough backcountry surfaces where control and reliability are critical. The ST RX810
