Ainiv 4-Digit Password Bicycle Lock 65cm

The Ainiv 4-digit password bicycle lock is a compact cable lock that blends everyday security with simple portability for kids and commuters. Designed with a 65cm steel cable wrapped in PVC and a zinc alloy lock core, it aims to reduce rust and resist impact while remaining light enough to hang from a saddle or fit in a bag. This model suits short stops and low to medium risk urban use, and the default code is 0000 for straightforward setup.

Key features

This combination lock uses a four-digit code offering 10,000 possible combinations, making casual tampering less likely. The number wheels are smooth running and colour-coded, which helps children set and recall their own code. The PVC-coated steel wire protects frames from scratches, and the zinc alloy core adds a measure of durability according to the manufacturer. Keep in mind that this is a cable-style lock, which is best used as a deterrent or for lower risk environments rather than as primary security in high-theft areas.

Technical details

• Name: Ainiv 4-Digit Password Bicycle Lock
• Type: Combination cable lock
• Size: 65cm
• Material: Steel cable with PVC coating, zinc alloy lock core
• Colour: Purple

Best use cases

This lock makes sense if you need a portable, child-friendly solution for brief stops at school, parks or shops. You’ll like it if you value light weight and easy code changes, especially where carrying space is limited. If you prioritise maximum theft resistance, consider pairing it with a heavier lock for longer or higher-risk parking.

Care & maintenance

Wipe the PVC-covered cable clean and avoid prolonged exposure to damp to keep rust risk low. If the wheels stiffen, a small drop of silicone lubricant can help maintain smooth rotation. Reset the combination occasionally and store the lock dry when not in use.