ONGUARD bike chain lock Fastlock 8286, 90 cm length, 5.5 mm chain, includes 5 coded keys

ONGUARD Fastlock 8286 is a bicycle chain lock with a 90 cm long, 5.5 mm thick chain and a barrel-style locking head. Designed for everyday urban use, it secures frames, wheels and fixed objects such as posts and rails. The set includes five coded keys to allow for spare keys or shared access and the chain's length and flexibility make it suitable for a range of locking positions on commuter and city bikes.

Advantages

The ONGUARD Fastlock 8286 combines a compact, flexible chain with a user-friendly barrel lock for convenient one-handed operation. Its 5.5 mm steel links provide a balance between portability and resistance to casual theft attempts. Including five coded keys reduces the need to immediately arrange duplicates and simplifies key replacement if one is lost. The chain's 90 cm length offers enough reach to secure both frame and wheel to fixed objects without requiring additional adapters.

Suitable for

• Securing commuter and city bicycles during short stops
• Locking a frame and one wheel to a post, rail or rack
• Use in urban environments where moderate theft protection is required

When it may not be suitable

The ONGUARD Fastlock 8286 is intended for everyday urban use and provides moderate theft resistance; it may not be sufficient in high-risk areas or locations known for professional theft. For securing high-value bikes for long periods in high-risk locations, a heavier-duty lock such as a thick hardened chain or a high-security U-lock would be more appropriate.

Key specifications

• Chain length: 90 cm
• Link thickness: 5.5 mm
• Lock type: barrel-style (Fastlock)
• Number of keys supplied: 5 coded keys
• Typical use case: urban and commuter bicycle security

How to use

Wrap the chain around the bike frame and a fixed object such as a post or rail, ensuring the lock head and chain links are aligned for smooth insertion. Insert a coded key into the barrel lock and turn to engage; remove the key and keep spares in a secure place. When possible, position the lock so it is off the ground and with the lock cylinder facing inward to make tampering more difficult. Periodically inspect the chain and lock for wear, corrosion or dirt and apply a suitable lubricant to the cylinder if operation becomes stiff.

What to consider before purchase

• Level of theft risk in the area where the bike will be parked
• Whether 90 cm chain length is sufficient for your typical locking points
• Preference for portability versus higher security (thicker chains or U-locks)
• Need for multiple spare keys or key management

Usage recommendations

For everyday commuting, use the chain to secure both the frame and at least one wheel to an immovable object; keep the lock cylinder facing inward and store spare keys separately. In higher-risk locations, combine this chain with an additional lock or choose a higher security product.