Cervelo Aspero 5 GRX RX825 Di2 Gravel BikeFork Cervlo All Carbon, Tapered Aspero 5 Fork Headset FSA IS2 1 1 4, 45 x 45 1 1 2, 36 x 45 Seatpost Cervlo SP27 Carbon Seatpost Sizing Size 48 0mm, Size 51 0mm, Size 54 0mm, Size 56 0mm, Size 58 0mm, Size 61 15mm Left Shifter Brake Shimano GRX, RX825 Right Shifter Brake Shimano GRX, RX825 Rear Derailleur Shimano GRX, RX827 SGS Brake Rotors Shimano CL800 Centerlock Front Thru Axles Cervlo Aero Thru Axle Front, M12x1. 5mm, 122mm length Rear Thru Axles