reset my cadence sensor and it worked fine, mid ride it messed up again and started giving me random readings, hit 94.1mph at one point...

fixed it mid ride and managed to finish without more than 2 false readings....we figured when it does mess up its reading about 5mph too slow...

I'll replace the sensor battery first tomorrow and hope that works...I need the cadence monitor because its something I'm still working on perfecting (or as close as i can get)

p.s. it was set to auto so i ruled that out