Master Lock Keyed Bicycle U-Lock, 7-1/4 Inch Anti-Theft Security Device, Model 8320D | Hardened Steel Body for Bicycles and Outdoor Equipment That Resists Cutting and Prying
Product Description
Overview
The Master Lock Keyed Bicycle U‑Lock, Model 8320D, is a 7-1/4 inch anti‑theft security device designed for bicycles and outdoor equipment. The lock features a key-operated mechanism and a U‑shaped frame that can secure a bike frame to a fixed object. Its hardened steel construction offers a baseline level of resistance to cutting tools and prying attempts.
Key Features
- 7‑1/4 inch opening width
- Keyed locking mechanism
- Hardened steel body
- Intended for bicycles and outdoor gear
- Model number 8320D
Design Details
The U‑shape of the lock allows the chain or frame of a bicycle to be looped through the body, then locked with a key. The 7‑1/4 inch measurement refers to the span that can accommodate most standard bicycle frames or other equipment requiring a moderate opening size. The lock’s body is made of hardened steel, a material chosen for its toughness relative to standard steel.
Usage Scenarios
When a rider stops the bike at a public location, the U‑lock can be looped around the frame and a stationary object such as a bike rack, post, or lamppost. The key is inserted to secure the lock, creating a barrier that deters a thief from moving the bike or equipment. The device is also suitable for securing other outdoor items that benefit from a simple U‑shape lock.
Security Aspects
Because the lock’s body is hardened steel, it offers resistance to cutting tools commonly used on lighter locks. The key lock design requires a physical key to disengage, preventing unauthorized opening without the proper key. The U‑shaped geometry limits the points at which the lock can be pried open, as the body surrounds the equipment it secures.
Material and Build
The hardened steel used in the lock’s body is engineered to provide a higher yield point than standard steel. This means the lock is less likely to deform when force is applied, whether from cutting tools or prying devices. The exterior of the lock is finished to reduce corrosion, supporting its use in outdoor environments where moisture and temperature variations may occur.
Maintenance and Care
Periodically inspect the lock for signs of wear or damage. Clean the surface with a mild detergent and dry the lock to prevent rust buildup. Store the lock in a dry place when not in use to preserve the integrity of the steel and the key mechanism.
Key Information
The lock is keyed, meaning a specific key is required to lock and unlock. This design eliminates the need for combinations or electronic components. The key must be kept separate from the lock to prevent loss, as the lock cannot be opened without it.
Storage and Transport
When traveling, the lock can be carried in a bag or pouch. The 7‑1/4 inch width allows the lock to be folded or stored without taking up excessive space. Keep the key separate from the lock during transport to avoid accidental loss.
Summary
The Master Lock Model 8320D provides a straightforward key‑based locking solution for bicycles and other outdoor equipment. Its 7‑1/4 inch opening accommodates a variety of frames, while the hardened steel body offers a level of durability against cutting and prying. The lock’s design and construction are intended to give a rider a reliable means of securing their bike or gear in public places.