JD Jingzao Bicycle Lock Five-Digit Password Anti-Theft Chain Lock for Electric and Mountain Bikes Cycling Accessories 90cm

Thickened 4.0mm braided cable with secondary twisting for high tensile strength

Rust-proof and waterproof for outdoor use

High safety factor with tightly meshed internal lock teeth

Passed iLaC-MRA international mutual recognition

CNAS accredited testing

Complies with national quality standards

Suitable for electric bikes, bicycles, handcarts, doors, and windows

Multi-purpose anti-theft lock

Made of high hardness material

Adjustable and reinforced design to fit various seat post diameters (34-38mm)

Easy installation with screws and secure locking mechanism

Features a red button for quick lock removal

Recommended to wrap the lock cable around the seat post before inserting into the bracket to prevent loss during bumps

Data statistics as of November 7, 2025

Over 400,000 units sold cumulatively

Trusted quality guaranteed by authoritative institutions