Zpao Electric Bike Manual Link
Most Zpao e-bikes use an LCD-3 or KD51C display. Your Zpao manual will have a diagram, but here is the plain-English breakdown.
At speeds over 18 mph, your feet spin freely without resistance. Cause: The cadence sensor magnet ring has slipped. Fix: Remove the left crank arm. You will see a black plastic ring with magnets. Push it back toward the frame (0.5mm gap from the sensor). Tighten set screw. Zpao Electric Bike Manual
: Motor failure (Check the waterproof connection cable near the rear motor hub). Most Zpao e-bikes use an LCD-3 or KD51C display


