Quick Summary
The Kryptonite Keeper 712 Combo is a bicycle chain lock with a resettable 4-digit combination. Its 7 mm manganese steel links form a 120 cm chain, and a nylon sleeve covers the chain. The listed security rating is Sold Secure Bronze.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Chain | 7 mm four-sided 3T manganese steel links; check the link size against your locking needs. |
| Length | 120 cm (about 4 ft); available reach depends on how the chain is routed around the bike and a fixed object. |
| Locking method | Resettable 4-digit combination, so it does not use a key. |
| Security rating | Sold Secure Bronze. This is a rating, not a guarantee against theft; consider whether it matches your parking conditions and security needs. |
| Weight | About 4.5 lb (2.04 kg), a factor to consider when carrying the lock. |
| Sleeve | A nylon sleeve covers the chain and helps limit contact between the chain and the bike frame. |
Key Features Explained
The combination mechanism avoids carrying a separate lock key. Because the code is resettable, choose and record a code you can reliably recall. The stated Sold Secure Bronze rating gives a specific security classification to compare with other locks; it does not establish that the lock is suitable for every location or risk level.
What to Compare Before Buying
- Reach: Check whether 120 cm is enough to pass around your frame or wheel and the fixed object you plan to use.
- Carry weight: At about 4.5 lb, this chain has a noticeable carrying weight. Consider how you will transport it when riding.
- Security needs: Compare the Bronze rating and 7 mm links with the security requirements of your usual parking locations. No lock rating guarantees that a bicycle cannot be stolen.
Plan a Locking Route
Before relying on the chain for a regular stop, try its reach with your bike and the kind of fixed object available at that location. Check that the chain can follow the route you intend without coming up short, and decide how you will carry its weight between stops.
Before You Decide
Confirm that the 120 cm length reaches your intended locking point, that a 4-digit combination suits your preference, and that the lock’s weight and Sold Secure Bronze rating fit your needs.
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