Originally Posted by Balkan Boy
Damn those sentinel boxes are huge.
If you mean the blue box on the side of the nav tower, that is the Irritrack unit, not the sentinel... the sentinel is now combined with the GPSII unit, which is much smaller than before, and typically mounted above the bar clamps.
But I agree with your initial observation - why the Irritrack still has to be that size goodness only knows, the similar E-track device is about 1/3rd the size and offers the same essential facilities, other than the two way voice comms... I'm sure it will come, but it is a PITA trying to find space on the new breed of bikes for that hunk of metal!