Bicycle Lock MasterLock QUANTUM 8228 — compact cable lock, red

MasterLock QUANTUM 8228 is a compact cable lock in red designed to provide basic security for bicycles and lightweight personal transport devices. Its slim profile and short cable length make it easy to carry and mount for quick stops in urban settings. The lock is intended as a portable deterrent against opportunistic theft and offers simple operation suited to daily commuting and short errands.

Advantages

The compact design balances portability with practical coverage for securing frames, wheels, or folding components. Constructed with a flexible cable and a keyed locking mechanism, the QUANTUM 8228 allows straightforward locking and unlocking while remaining lightweight for attachment to racks or bags. Its bright red color improves visibility and helps users locate the lock quickly among other items.

Suitable for

• Securing bicycles during short stops in urban areas
• Locking scooters, kickboards, and hoverboards temporarily
• Commuters and students needing a portable security option
• Attaching to bags, backpacks or bike frames for transport

Key specifications

• Type: compact cable lock with keyed cylinder
• Color: red
• Form factor: short, flexible cable suitable for lightweight locking tasks
• Portability: lightweight and designed for easy mounting or carrying
• Intended use: basic theft deterrence for short-term stops

How to use

Insert the cable loop around the bicycle frame or the part to be secured and thread the locking end through the loop or around a fixed object, then engage the keyed cylinder and turn the key to lock. Keep a spare key in a safe place; if the lock is wet, dry the cylinder after use to maintain smooth operation. For removal, insert the key and turn to release the cylinder, then withdraw the cable. Regularly inspect the cable and locking mechanism for wear or damage.

Usage recommendations

Use the QUANTUM 8228 as a convenient, portable deterrent for short stops rather than as a standalone solution for long-term or high-risk security needs. Combine with a heavier-duty lock when leaving a bicycle unattended for extended periods or in areas with higher theft risk. Store keys separately and avoid forcing the cylinder; perform periodic checks to ensure reliable function.