In regards to SRAM in general it's what I ride. My 2012 Giant has RED shifters, YAW FD, brakes and cranks with an Apex WiFli RD. At the time SRAM didn't make a RED level WiFli RD but the differences between the levels was only material used and thus weight. APEX and Rival RD from that time were the exact same part in reality. Force added some lighter bits and RED added a few more. My 2013 Vaya is built with all Rival with the exception of the RED Yaw FD. Note about that FD...the original SRAM FD was a bit ****ty...the 2nd gen FD the YAW design is MUCH better and even though the SRAM charts say it doesn't work with the earlier shifters/cranks it in fact does work just fine.