Shimano Dura-Ace FC-7800 39 Tooth 10-Speed B-Type Chainring | Tree Fort Bikes
PILO C44 - 32T Hyperglide+ Chainring 104bcd
Amazon.com : JGbike ~180g Lightweight 11 Speed Single Piece Cassette for Road Gravel cyclecross Bike, for Shimano Dura Ace Ultegra or SRAM Red Force for Triathlon - The Best Value Cassette Available :
Detailed First Look! New Shimano Dura-Ace R9100 unveiled, includes a powermeter & disc brakes! - Bikerumor