Quick Summary
The NDakter CH130 is a 4.27 ft bicycle chain lock with a 5-digit resettable combination. This version is listed with a 6 mm alloy steel chain, a zinc alloy lock cylinder and a polypropylene fabric cover.
It uses a combination instead of a key. The stated weight is 1.87 pounds, so consider both the chain’s reach and the weight you are willing to carry.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Lock type | 5-digit resettable combination lock; no key is used. |
| Chain length | 4.27 ft. Check that this gives enough reach around the bicycle and the fixed object you plan to secure it to. |
| Chain material and thickness | Alloy steel, 0.24 in (6 mm) thick. |
| Lock cylinder | Zinc alloy. |
| Cover | Polypropylene fabric around the chain, intended to help protect the bicycle frame from contact with the chain. |
| Weight | 1.87 pounds. |
| Listed quantity | 1 item. |
What to Compare Before Buying
- Length and anchor point: Check the available route around your bicycle and the fixed object. The 4.27 ft length may not reach every frame and anchor arrangement.
- Chain thickness: Confirm that the selected version is the 6 mm chain if that is the size you need; the listing title also presents other size options.
- Carrying weight: At 1.87 pounds, the lock adds weight to what you carry with the bicycle.
Combination and Security
The lock has a 5-digit resettable combination, and the listed default code is 00000. Change the default combination before relying on the lock, following its setting procedure. No bicycle lock is completely secure; avoid leaving a locked bicycle unattended for a long time, especially in a high-crime area.
Before You Decide
Confirm that the selected configuration is 4.27 ft long with a 6 mm chain, and that its reach suits your bicycle and intended anchor point. Consider the 1.87-pound weight and set the combination before use.
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