TRACKDAY DELIGHTS by Don Canet Jul 07, 2017 1 minute 1 YAMAHA DATALOGGERLap analysis can improve a rider’s on-track performance. The GYTR Communications Control Unit ($699.99) equips current-gen YZF-R1, R1S, or R6 with the same components as on You’re reading a preview, subscribe to read more.Start your free 30 daysSharing OptionsShare on Facebook, opens a new windowShare on Twitter, opens a new windowShare on LinkedInShare by email, opens mail client