Amazon.com : SHIMANO Ultegra Cs-6700 Cassette 10 Speed, 11X23 : Bike Cassettes And Freewheels : Sports & Outdoors
Amazon.com: SHIMANO Deore XT BL-M8100/BR-M8120 Disc Brake and Lever - Front, Hydraulic, Post Mount, 4-Piston, Finned Metal Pads, Black : Sports & Outdoors