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Serea Swift

The Serea Swift Bike Chain Lock is a Sold Secure bronze rated bike lock.

This chain lock from Serea is a smart, keyless security option that combines a strong 100-centimeter long, 6-millimeter hardened-steel chain with the convenience of NFC unlocking through your smartphone. It works without batteries or charging, using NFC and the Serea app to unlock quickly, while encrypted data transfer helps protect access in a way similar to modern mobile payments. The long length makes it easier to reach around racks, posts, and wider objects, and the protective sleeve helps prevent scratches on your frame during everyday commuting and parking.

Features

• Keyless smart chain lock that unlocks via NFC using the Serea app
• Battery-free design so there is no charging and no batteries to replace
• 6 mm hardened steel chain with protective sleeve for daily bike security
• 100 cm length gives practical reach around racks, posts, and wider objects
• Encrypted data transfer for safer access management similar to mobile payments
• Shareable access via the app so friends can be added or removed anytime
• Track usage and unlock locations for extra peace of mind
• Sold Secure Pedal Cycle Bronze rated security

Technical

• Chain thickness: 6 mm
• Length: 100 cm | 125 cm
• Color: black | orange
• Certifications: Sold secure Pedal Cycle Bronze
  Serea Security Grade: 9/15