By MKS original Ezy Superior and Ezy system , the pedals are easily & rapidly released without any specific tools.
It is best suitable for folding bikes or “RINKO” activity: packing and carrying bikes for traveling by train.

The stopper must be fitted.If it could not be fitted, the pedal attachment is incomplete.
Without the stopper, the adapter would be broken, or the pedal may fall off and will result in serious injury.