^ I'm not sure that's correct. My understanding is that the "2.4" refers to the 2.4 ghz transmission system. If it will receive a 2.4ghz signal from the coded heart rate strap, and from a wireless cadence sensor, I don't see why it wouldn't receive a wireless signal from a wireless hub.

When I asked Saris why they sent me a 2.4 head (that required a new coded strap) they told me they only make one head unit now.