Originally Posted by
Fredo76
The Cateye Velo 7 speedometer is the basic wired model. The Velo 9 adds calories and CO2 - not needed IMO. The Urban Wireless model eliminates the wire without going bigger and bulkier, but you have to wake it from sleep mode, or it won't record your ride. The wired models wake automatically, but do not zero-out without holding the button. Either are more accurate than a phone GPS, provided you set the size of the wheel accurately in the setup routine.
Yeah, I have those on everything - the 7 that is. I've used them since Cateye were the newest greatest thing. The 7 has everything in it that I have any interest in and they're dirt cheap so if it gets lost no BFD.
Of course I'm just out for a ride. I'm old fat and stupid and my bikes are old and simple. Works for me. YMMV