I’m looking for RPM and speed mostly, because I have no idea what I’m doing. I would also like the time, riding time, and distance traveled. Data transfer I would really like. Heart rate I would like but I don’t need it and I think it’s expensive. I don’t need GPS, a calorie counter, or altitude. Budget I would like $50 but I’m flexible. $80 is OK but nothing over $100. At minimum for the display, I would like the RPM and speed to show but with the other data recordable or viewable somehow. More data outputted on the screen the better. I like numbers. Is wired more reliable and cheaper? Wired wouldn’t be a problem. Used or refurbished models are OK.

Also anyone try VeloComputer? I have an S60.