| Revision as of 07:49, 19 August 2005 editPt (talk | contribs)Extended confirmed users3,088 editsm →Wheel Lock: used -> uses← Previous edit | Revision as of 16:59, 18 September 2005 edit undoMichael Shields (talk | contribs)Extended confirmed users698 editsNo edit summaryNext edit → | ||
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| A '''bicycle lock''' is a ] device used on bicycles to prevent theft. Most ] locks are usually either U-locks or ] locks |
A '''bicycle lock''' is a ] device used on bicycles to prevent theft. Most ] locks are usually either U-locks or ] locks. | ||
| An important difficulty in preventing the theft of a bicycle is that the ] are easily detachable from the ], and that unless the bicycle is attached to an immobile object it can easily be carried away. However, if only the frame is locked, a wheel or wheels may be stolen. The most secure locking systems therefore lock the wheels and frame to each other and to an immovable object. | |||
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| ⚫ | Most portable locking devices need to be quite large and substantial to discourage serious theft. This makes them inconvenient and heavy. An alternate solution is the provision of lockable boxes where the whole bicycle is locked in. This safeguards other equipment such as lamps, tolls, spare tubes etc. | ||
| ==U-locks== | ==U-locks== | ||
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| A chain lock is a lockable chain. It often has a key or a combination lock attached to it. A long enough chain can pass through both wheels, the frame and attach the bicycle to an immovable object. | A chain lock is a lockable chain. It often has a key or a combination lock attached to it. A long enough chain can pass through both wheels, the frame and attach the bicycle to an immovable object. | ||
| ==Wheel |
==Wheel lock== | ||
| A lock mounted on the frame that immobilises the rear wheel by moving a steel bolt through the spokes to prevent motion. It uses a straight or circular bolt which extends from the housing. This type of lock is found particularly on bicycles in ], ], and ]. | A lock mounted on the frame that immobilises the rear wheel by moving a steel bolt through the spokes to prevent motion. It uses a straight or circular bolt which extends from the housing. This type of lock is found particularly on bicycles in ], ], and ]. | ||
Revision as of 16:59, 18 September 2005
A bicycle lock is a security device used on bicycles to prevent theft. Most bicycle locks are usually either U-locks or chain locks.
An important difficulty in preventing the theft of a bicycle is that the wheels are easily detachable from the frame, and that unless the bicycle is attached to an immobile object it can easily be carried away. However, if only the frame is locked, a wheel or wheels may be stolen. The most secure locking systems therefore lock the wheels and frame to each other and to an immovable object.
Most portable locking devices need to be quite large and substantial to discourage serious theft. This makes them inconvenient and heavy. An alternate solution is the provision of lockable boxes where the whole bicycle is locked in. This safeguards other equipment such as lamps, tolls, spare tubes etc.
U-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. To lock the bicycle, one either locks it physically to some other object, or locks the frame to the spokes of the wheel, rendering the entire bicycle immobile. The most common brand name of U-lock is the Kryptonite lock.
Chain
A chain lock is a lockable chain. It often has a key or a combination lock attached to it. A long enough chain can pass through both wheels, the frame and attach the bicycle to an immovable object.
Wheel lock
A lock mounted on the frame that immobilises the rear wheel by moving a steel bolt through the spokes to prevent motion. It uses a straight or circular bolt which extends from the housing. This type of lock is found particularly on bicycles in Scandinavia, the Netherlands, and China.
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