I have a left side 4iii PM and still calibrate before every ride. Previously I have gone 6 months or so without calibrating and it was reading over 20w higher. I thought my FTP was going through the roof, sadly not…
I have a left side 4iii PM and still calibrate before every ride. Previously I have gone 6 months or so without calibrating and it was reading over 20w higher. I thought my FTP was going through the roof, sadly not…