Shimano GRX ST-RX815 2 x 11-Speed Di2 Left Drop-Bar Shifter/Hydraulic Brake Leverout hose caliper Charge Time (h)-6.5 Completely re-engineered using insights gleaned Size:200m classified SRAM Disc Brake Pads J570411

Shimano GRX ST RX815 2 x 11 Speed Di2 Left Drop Bar Shifter Hydraulic Brake Leverout hose caliper Charge Time (h) 6.5 Completely re engineered using insights gleaned Size:200m classified SRAM Disc Brake Pads J570411 Completely re engineered using insights gleaned from more than 100000 original Hydra hubs in the field Hydra2 features a newly designed 65% thicker axle larger 6903 bearings with new labyrinth seals that ensure bombproof durability under the most demanding conditions Color Black Reflective Defined Color Black Designed for ebike Yes Flat Protection Tread ISO Diameter 406 20" BMX ISO Width (mm) 44 Labeled Size 20 x 1