The standard of determine and gist：J I S D 9 4 1 6 – 2 0 0 9
Install the pedal on device, apply 90KG plummet on pedal as photo below to ensure the limit for loading weight vibration. Carry on test cycle 100000 times by suitable speed for this material and ensure not too hot for rotating axle. Change to other pedal thread when 50000 times. Check whether there is any obvious damage on pedal or axle thread after test.