U-locks and D-locks
A U-lock is a rigid metal ring in the shape of the letter U. The U part of the lock attaches to a crossbar section, and for this reason they are also called D-locks. To lock the bicycle, … See more

Test standards that rate the effective security of bicycle locks are provided by various companies and organizations, depending on location.
In the UK, a lock … See more

• Bicycle locker
• Bicycle parking
• Bicycle stand - also known as bicycle rack See more

Bicycle locks are only effective when they are used on secure objects. For example, a bicycle lock is useless when connected to a "sucker pole", which is a pole that gives the biker the appearance of security. A bicycle thief may target the bicycle because the pole … See more

• Locks tested by ART Foundation See more