Chain lock ABUS 4204K/85 Black 850 mm Steel 4 mm diameter

The ABUS 4204K/85 Goose Lock is a compact chain lock with a flexible gooseneck design that can be shaped around the bicycle frame and holds its form. The lock combines a 4 mm hardened steel chain with a foam core and an IvyTex synthetic fibre coating for abrasion protection. Its right-angled lock body and 850 mm chain length make it easy to use while offering practical reach for securing a bike.

Advantages

The Goose Lock construction provides dimensional stability so the lock can be bent and wrapped securely around the frame without losing shape. The 4 mm hardened steel chain gives basic theft resistance while the foam core eliminates rattling and improves handling. A durable IvyTex coating protects the bike finish from scratches and increases abrasion resistance. At 710 g the lock balances portability and usability for everyday locking.

Suitable for

• Securing bicycles in low- to medium-risk areas
• Short stops in urban environments
• Use with city bikes, commuter bikes and folding bikes
• Protecting small outdoor items where a compact chain lock is sufficient

Key specifications

• Brand: ABUS
• Model: 4204K/85 (MPN 38138, EAN 4003318381386)
• Chain length: 850 mm
• Chain material and thickness: specially hardened steel, 4 mm
• Weight: 710 g
• Coating: IvyTex synthetic fibre
• Design: gooseneck (dimensionally stable spiral core) with foam cover

How to use

Bend the Goose Lock into the shape needed to reach around the frame and a fixed object, then insert the chain end into the lock body at right angles and close it according to the supplied key or locking mechanism. Position the chain to pass through the frame and, if possible, the rear wheel to improve security. Store the lock on the frame or in a bag when not in use; the foam core prevents rattling during transport.

Usage recommendations

Use the ABUS 4204K/85 for short stops and in areas with lower theft risk. For long-term or high-risk parking, combine with a heavier-duty lock or choose a thicker chain or U-lock with higher security rating.