OPEN UPPER 2.0: An RTP Red XPLR Build Our first OPEN UPPER 2.0 build: bare ready-to-paint carbon, SRAM Red AXS XPLR 1x with a power meter, ENVE G SES 4.5 Pro wheels, and 45mm Schwalbe G... 1x Bike Build Custom Build Gravel OPEN SRAM Red XPLR 06/08/26Sundays Cycles OPEN UPPER 2.0: An RTP Red XPLR Build