Shimano Braking GRX BRRX400KTSTRX600ST

・Never hesitate to engage on rough surfaces "Excellent heat dissipation -ICE TECHNOLOGIES "Flat Mount・Simple installation and maintenance "Convenient access to adjustments -Easy brake hose connection system (J-kit) "Easy wheel replacement "Quick and easy bleeding -ONE WAY BLEEDING・Better control on varied terrain "Gravel-inspired lever and bracket ergonomics "Non-slip brake lever・Shifting as easy as with high-end systems