Introduction
Thank you for choosing the Kryptonite Keeper 785 Bike Chain Lock. This heavy-duty anti-theft solution is designed to provide robust security for your bicycle, motorcycle, scooter, or other valuable items. Constructed from durable manganese steel with a patent-pending end link design and a high-security disc-style cylinder, the Keeper 785 offers significant resistance against cutting, leverage attacks, picking, and drilling. Its weather-resistant nylon sleeve protects both the chain and your property from scratches and wear.

Installation
- Unpack the Lock: Carefully remove the Keeper 785 chain lock and its two keys from the packaging.
- Inspecter les composants : Verify that all parts are present and undamaged. The lock includes the integrated chain with a nylon sleeve, the hardened deadbolt locking mechanism, and two ergonomic 'I' keys.
- Familiarize with Keys: Insert one of the keys into the disc-style cylinder. Turn the key to ensure the locking mechanism operates smoothly. The key should insert fully before turning.
- Mécanisme de verrouillage de test : Practice connecting the end link of the chain to the hardened deadbolt. Ensure it clicks securely into place.

Mode d'emploi
To effectively secure your property, follow these steps:
- Choisissez un objet sécurisé : Always lock your bicycle to a fixed, immovable object such as a bike rack, lamppost, or sturdy fence.
- Secure the Frame and Wheel: Pass the chain through the frame of your bicycle and at least one wheel. If possible, also loop it around the secure object. This maximizes protection by preventing the removal of wheels or the entire bike.
- Connectez le verrou : Bring the end link of the chain to the integrated deadbolt. Insert the end link into the deadbolt mechanism until it clicks firmly into place. Ensure the connection is tight to minimize leverage points for thieves.
- Retirer la clé : Once locked, remove the key. The key can only be removed when the lock is fully engaged in the closed position, ensuring you don't accidentally leave it unlocked.
- Déverrouillage : Insert the key fully into the cylinder and turn it to disengage the deadbolt. Pull the end link out of the mechanism to free the chain.

Video Demonstration: Kryptonite Keeper 785 Chain Bike Lock
Video Demonstration: NYC Bike Security Test
Entretien
- Garder propre: Periodically wipe down the chain and locking mechanism with a damp chiffon pour enlever la saleté et la crasse.
- Lubricate the Cylinder: For optimal performance, especially in dusty or wet conditions, lubricate the lock cylinder with a small amount of a PTFE-based lubricant (e.g., WD-40, as suggested by user experience) every 3-6 months. Avoid oil-based lubricants as they can attract dirt.
- Nylon Sleeve Care: The durable weather-resistant nylon sleeve protects your bike's finish and the chain itself. If the sleeve becomes dirty, it can be wiped clean. Avoid harsh chemicals that may degrade the fabric.
- Soins clés : Store your keys in a safe place. Avoid exposing them to extreme temperatures or corrosive substances.

Dépannage
- Touche collante : If the key feels stiff or gets stuck, apply a small amount of a PTFE-based lubricant into the keyway and work the key in and out several times. Ensure the key is fully inserted before attempting to turn it.
- Verrouillage non activé : Check that the end link is properly aligned with the deadbolt mechanism and that no debris is obstructing the entry. Ensure the chain is not under excessive tension, which can prevent smooth engagement.
- Clé de difficulté à retirer : The key is designed to be removed only when the lock is fully engaged. If the key cannot be removed, ensure the lock is completely closed and try turning the key slightly while pulling it out.
Caractéristiques
| Fonctionnalité | Détail |
|---|---|
| Marque | Kryptonite |
| Numéro de modèle | 720018000853 |
| Type de serrure | Key Lock (Disc-Style Cylinder) |
| Matériau de la chaîne | 7mm Four-Sided Manganese Steel |
| Longueur de la chaîne | 33.5 pouces (85 cm) |
| Poids | 3.50 livres (1.59 kg) |
| Protective Covering | Durable Weather-Resistant Nylon Sleeve |
| Cote de sécurité | 5/10 (Moderate Security) |
| Composants inclus | Bicycle Lock, 2 Keys |


Garantie et assistance
Kryptonite is committed to your satisfaction and product quality.
- Garantie à vie limitée : The Kryptonite Keeper 785 comes with a limited lifetime warranty. For any issues, please contact our Customer Experience team for prompt resolution.
- Anti-Theft Protection Offer (ATPO): Register your lock to qualify for Kryptonite's Anti-Theft Protection Offer. This program provides financial reimbursement in the event your bicycle is stolen due to the forced opening of your registered lock. Terms and conditions apply; please visit the official Kryptonite website pour plus de détails.
- Key Safe Program: Register your keys with the Key Safe Program. If you lose your keys, Kryptonite can provide replacement keys. Registration is required to utilize this service.