Heavy Duty Disc Lock 5.5mm Hardened locking pin Suitable for use on motorbikes, push bikes, mopeds and scooters Locks onto the brake disc to prevent the wheel from turning Supplied with 2 keys Bike Disc Lock Suitable For Motorbike Brake Discs With 5.5mm Holes. Simple Yet Highly Effective Bike Disc Lock Simple To Use Design, Hardened Locking Pin Slides Into Brake Disc Hole To Make It Impossible For The Wheels On Your Bike To Move When Locked In place Each Disc Lock Is Supplied With 2 Keys Bike Lock Is Suitable For Use On Motorbikes, Push Bikes, Mopeds And Scooters Where Brake Disc Holes Are 5.5mm Small, Light And Portable Bike Disc Lock, Easy To Apply To Brake Discs And Quick And Easy To Remove With Supplied Keys