• Anyone had an issue with a 4iiii single crank powermeter not being able to calibrate? I can connect to the device on my wahoo, but the numbers it gives are way lower than reality (by c200w). The 4iiii app won't connect. When I try to calibrate it comes up with a failure message. Change of battery hasn't made a difference. No crash damage or water ingress as far as I know/can tell

  • I had this, and ended up having to send back to 4iiii for a replacement unit. They did me a decent discount as it wasn't too far out of warranty

About