Quick Summary
The ZELENY bike lock is a 3 ft (90 cm) chain lock with a 5-digit combination, designed for securing a bicycle without a key. It features a thickened plug, a reinforced lock core, a 7 mm alloy steel chain and a protective fabric cover.
For buyers comparing chain locks, the main points here are the stated chain length, the 5-digit code system and the chain thickness. Those details affect how the lock is used, how much locking reach it offers and how the lock is configured.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | ZELENY, so the product can be identified as a specific branded bike lock. |
| Product type | Chain bike lock with combination locking. |
| Length | 3 ft (90 cm), which affects how far the chain can reach around the bicycle and the object it is locked to. |
| Chain thickness | 7 mm, a useful comparison point when choosing between chain locks. |
| Locking method | 5-digit code, so there is no key to carry. |
| Chain material | Alloy steel chain with a galvanised, rust-resistant surface. |
| Cover | Polyamide fabric cover, which helps protect the chain and the bicycle frame. |
What to Compare Before Buying
- Length: The chain is 90 cm long. Check whether that reach suits the bike, rack or fixed object you plan to use.
- Locking format: This is a 5-digit combination lock. Compare that with whether you prefer code entry or a key lock.
- Chain build: The chain is stated as 7 mm thick alloy steel. Compare that with the size and style of chain you want.
- Cover and contact points: The fabric cover is intended to sit between the chain and the frame, so check whether that matters for how you will store or carry it.
Compatibility, Size and Fit
This lock is described for bikes and also mentions use with motorbikes, electric scooters, prams, gates, ladders, lawnmowers and barbecues. For any of those uses, the key check is whether the 90 cm chain length and lock style suit the object you want to secure.
If you need to pass the chain around a larger frame, post or fixed point, a longer chain may be a better fit. If you are using it on a bicycle, check the route the chain needs to take around the frame and anchor point before choosing an offer.
Before You Decide
Confirm that the 90 cm chain length suits your locking setup, and check whether you want a 5-digit combination lock rather than a key lock. If you are comparing options, keep an eye on chain thickness and the exact items you plan to secure.









