**Brief Introduction**
SDL13 tear‑resistant fabric‑sleeve combination chain lock features upgraded heavy‑duty outer textile for sand‑wind, rain and heavy‑wear environments, solving common issues of ordinary sleeves fraying, tearing and wearing through. Equipped with proven 5‑digit key‑free combination and alloy‑steel chain for reliable anti‑theft performance. Perfect for overseas regions with sandstorms or heavy rainfall, as well as high‑frequency‑use rental and shared‑vehicle fleets. It maintains good appearance and protective capability even with prolonged outdoor exposure.

**Material & Craftsmanship**
Quenched alloy‑steel cut‑resistant chain links. Upgraded high‑density tear‑proof oxford‑fabric sleeve for superior tensile and abrasion performance. Zinc‑alloy combination lock head with dust‑proof gear assembly to block sand and grit ingress.

**Key Features**

1. Upgraded tear‑resistant heavy‑duty fabric sleeve extends service life in harsh outdoor environments.
2. Resettable 5‑digit combination offers convenient key‑free operation.
3. Flexible alloy‑steel chain enables wrapping around various fixed anchoring points.
4. Fabric sleeves support custom brand‑logo printing for proprietary‑brand products.
5. Durability validated via repeated high‑frequency opening‑closing endurance testing.

**Application Scenarios**
Bicycles, e‑bikes and motorcycles for open‑air parking in sandy or rainy climates. Also applicable for rental‑fleet and shared‑mobility equipment.

**OEM & ODM Service**
Custom sleeve prints, chain lengths and packaging schemes. Neutral stock available; stable lead‑times for full‑container bulk orders.