I was wondering if anyone could confirm that the mount used by the Bryton R300L Radar is the same as the one used by the Bryton computers? My bike has a Topeak bike rack for commuting which means I cannot use both the Radar and my quick-release bag as the same time (bag blocks the Radar that is on my seat post!)! I'm looking to make my own adapter to mount the radar to the back of the rack but want to make sure that the standard Bryton mount is compatible before I order one. Thanks!