Shimano Ultegra BR-R8070 Rear Flat Mount Brake Caliper Bike Accessories Brand_Maxxis the G23 is the lightest

the G23 is the lightest 700c tubeless rim ENVE produces

T20 chromoly rail with standard round size of 7 mm

The OSPW System for SRAM fits up to 32-tooth cassettes

Chamois: TriAir

Replaces both the fluid and electrolytes lost in sweat while providing just enough calories to help fuel working muscles

Shimano Ultegra BR-R8070 Rear Flat Mount Brake Caliper Bike Accessories Brand_Maxxis the G23 is the lightestDesigned to integrate seamlessly with a road bike's profileBetter heat dispersion than current road disc systems (SM RT800)Greater rider control in all conditionsFlat mount hydraulic typeHydraulic disc brake provides the next stage of controlNew construction provides better heat management than current ICE TECHNOLOGIES FREEZASleek integration into a road bike's aero profile SERIES Ultegra GENERATION Ultegra Di2 R8070 CALIPER MATERIAL Aluminum CABLE OR