SDL03 Password Chain Lock | Keyless Code-Type Bicycle Chain Anti-Theft Lock

Brief Introduction
SDL03 password chain lock is a newly upgraded chain lock for bicycle riders. It adopts flexible steel chain wrapped by thick fabric sleeve, effectively preventing scratches on bike paint. The 4-digit password design removes the trouble of carrying keys. Lightweight and flexible for easy storage and wrapping around frames, wheels or railings. Ideal for bicycle accessory distributors and bulk orders for student and urban commuter markets.

Material & Craftsmanship
High-strength steel chain core. Wear-resistant woven fabric outer sleeve to avoid paint scratching. Precision 4-digit password mechanism.

Key Features

1. Flexible chain structure, fabric outer cover protects bike surface from scratches.
2. 4-digit keyless password unlocking, users can reset password freely, no need to carry keys.
3. Lightweight & portable, easy to coil and store, convenient for daily riding.
4. Reliable daily anti-theft performance, stable mass production and on-time delivery.
5. OEM available: custom sleeve colors, laser-engraved logos and personalized color-box packaging.

Application Scenarios
City commuter bikes, mountain bikes, student bicycles, electric scooters, daily leisure bikes.

OEM & ODM Service
Custom laser-engraved logos, multiple fabric sleeve color options and customized packaging. Small-batch mixed orders supported.