Shimano Shimano GRX Di2 ST-RX825 / BR-RX820 Road Hydraulic Disc Brakes bike/components/brakes & brake parts 070825 Our injection-molded seamless construction uses

Our injection-molded seamless construction uses less material to deliver a noticeably lighter boot that can withstand over 2 million flexes without cracking or leaking

For heavier or more experienced riders

Case pack: 2

Latest design and functionality for all freeride and freestyle beginners

Cut-out heart on the contrasting saddle

Shimano Shimano GRX Di2 ST-RX825 / BR-RX820 Road Hydraulic Disc Brakes bike/components/brakes & brake parts 070825 Our injection-molded seamless construction usesThe 12 speed SHIMANO GRX Di2 DUAL CONTROL LEVER with GRX BR R820 disc brake caliper. Attributes Fluid Mineral oil Brake Material Aluminum Caliper mount Flat mount Lever Blade Material Aluminum Primary Color Black