I had got V100HR cycle computor for X mass, I added the cadence kit, but I could not get the cadence to work, so I E-mailed Vetta custermer service thay said pack it up and send it in, and we will look at it. It came back after being gone for a week and a half. I had got the wrong kit for the cadence. I got it on today every thing seams to be working good, so here is a big :thumbsup: for Vetta I now have Speed cadence and Hart rate all wireless plus a lot more. I liked it befor so now with the cadence I am sure I will be verry happy.