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.
Setup
- Unpack the Lock: Carefully remove the Keeper 785 chain lock and its two keys from the packaging.
- Inspect Components: 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.
- Test Locking Mechanism: Practice connecting the end link of the chain to the hardened deadbolt. Ensure it clicks securely into place.
Operating Instructions
To effectively secure your property, follow these steps:
- Choose a Secure Object: 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.
- Connect the Lock: 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.
- Remove the Key: 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.
- Unlocking: 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
Maintenance
- Keep Clean: Periodically wipe down the chain and locking mechanism with a damp cloth to remove dirt and grime.
- 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.
- Key Care: Store your keys in a safe place. Avoid exposing them to extreme temperatures or corrosive substances.
Troubleshooting
- Key Sticking: 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.
- Lock Not Engaging: 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.
- Difficulty Removing Key: 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.
Specifications
| Feature | Detail |
|---|---|
| Brand | Kryptonite |
| Model Number | 720018000853 |
| Lock Type | Key Lock (Disc-Style Cylinder) |
| Chain Material | 7mm Four-Sided Manganese Steel |
| Chain Length | 33.5 inches (85 cm) |
| Weight | 3.50 lbs (1.59 kg) |
| Protective Covering | Durable Weather-Resistant Nylon Sleeve |
| Security Rating | 5/10 (Moderate Security) |
| Included Components | Bicycle Lock, 2 Keys |
Warranty and Support
Kryptonite is committed to your satisfaction and product quality.
- Limited Lifetime Warranty: 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 for details.
- 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.