**Brief Introduction**
SDU13 weather‑resistant U‑lock features upgraded protective‑jacket material engineered for persistent open‑air parking environments. Ordinary lock housings tend to age, harden, crack and peel after prolonged sun exposure. SDU13 adopts UV‑stabilized modified‑formula jackets retaining flexibility under continuous sun‑rain exposure and resisting brittle cracking. Equipped with alloy‑steel shackle, anti‑drill copper key cylinder and frame‑mount bracket. A preferred selection for overseas customers from tropical or high‑sun‑intensity regions with predominantly outdoor‑parking scenarios.

**Material & Craftsmanship**
Quenched alloy‑steel shackle. Modified UV‑stabilized anti‑aging protective jacket resisting ultraviolet degradation. Anti‑drill copper key cylinder. Standard‑issue frame‑mount bracket.

**Key Features**

1. UV‑stabilized anti‑aging protective shell resists cracking and brittleness under sun‑rain outdoor conditions to extend cosmetic service life.
2. High‑strength alloy‑steel shackle delivers solid anti‑cut anti‑theft capability.
3. Stable key‑operated anti‑drill copper‑cylinder performance.
4. Frame‑mount bracket for convenient on‑bike storage.
5. Full OEM customization for housing colors, laser‑engraved logos and packaging.

**Application Scenarios**
Bicycles and e‑bikes, especially for geographies with strong sunshine and high proportion of open‑air parking.

**OEM & ODM Service**
Custom laser‑engraved logos, jacket colors and color‑box packaging. Reliable lead‑times for large‑volume foreign‑trade orders.