ONGUARD bike lock Rottweiler 8024 — folding chain lock by ONGUARD (ONG-8024)

ONGUARD Rottweiler 8024 is a folding chain lock engineered to secure bicycles, scooters and similar personal transport in urban and commuting environments. The lock combines linked metal segments that fold into a compact form for convenient storage with a keyed locking mechanism for everyday use. Its design balances portability and resistance to casual theft attempts, making it suitable for riders who need a practical, space-saving security solution.

Advantages

The folding chain construction provides a compact footprint when stowed while offering multiple hardened links when deployed, reducing exposed weak points. The keyed cylinder offers reliable locking operation and straightforward key access. The segmented links allow the lock to wrap around frames, wheels and fixed objects with flexibility that rigid bars lack, and the overall form factor supports transport on a bike frame or in a bag without excessive bulk.

Suitable for

• Securing city bicycles during short stops and commuting
• Locking scooters and children’s ride-on vehicles in public places
• Affordable protection for campus, workplace or local errands
• Users who prioritize compact storage and portability

Key specifications

• Folding chain design with linked metal segments for flexibility and compact storage
• Key-operated cylinder for locking and unlocking
• Intended for use with bicycles, scooters and similar small personal transport
• Compact when folded for easier transport on-bike or in a bag

How to use

Unfold the chain segments and pass the chain around the bicycle frame and a secure fixed object such as a bike rack or post. Position the chain so it secures the frame and, where possible, a wheel. Insert the key into the cylinder and turn to lock; remove the key and stow it separately. When returning, insert the key, turn to unlock and refold the segments for transport or storage. Regularly inspect the locking mechanism and chain for signs of wear or damage.

Usage recommendations

For improved security, use the lock to secure the frame and a wheel to a fixed object in a well-lit, visible area. Store the key in a consistent place and periodically lubricate the cylinder with a graphite or manufacturer-recommended lubricant to maintain smooth operation.