Shimano GRX BR-RX410 bags Fully taped against the elements

Fully taped against the elements with stretch seams for flawless freedom of movement

SHIMANO quality/performance cartridge bearing square bottom bracket

Contains three precision pawls

Apply CeramicSpeed UFO Drip after 600km to maintain your peak chain optimization over the life of the chain

Seven unique output modes

Shimano GRX BR-RX410 bags Fully taped against the elements2 Piston RX410 flat mount hydraulic disc brake caliper Provides greater control for mixed terrain riding Excellent heat dissipation Convenient tool access Easy and clean bleeding system Includes L03A resin pads with improved wear resistance Attributes Brake Material Aluminum Brake Weight 109g Caliper mount Flat mount Disc Diameter 140 or 160mm (not included) Fluid Mineral oil Primary Color Black