The #415 Heavy Duty Chain locks, also known as master locks, are built specifically for handling the stress and speed of a motorized bicycle. You cannot just go down to your local bicycle store and buy these. It is suited for either our 80cc Bicycle Motors or our 49cc Bicycle Motors.
* Orders received Monday - Friday by 3:00PM EST are eligible for Same Day Shipping! Except for USPS which ships the next business day.