Introduction
This manual provides detailed instructions for the proper use, installation, and maintenance of your Kryptonite New-U New York Standard Heavy Duty Bicycle U-Lock and Keeper 785 Integrated Chain Lock bundle. Please read these instructions carefully before using your locks to ensure maximum security and longevity.
Product Overview
The Kryptonite New-U New York Standard U-Lock and Keeper 785 Integrated Chain Lock bundle offers robust security for your bicycle. This system combines a high-strength U-lock with a flexible chain lock for versatile locking options.

Image: The Kryptonite New-U New York Standard U-Lock (yellow and black) and the Keeper 785 Integrated Chain Lock (black with white branding), shown together as a bundle.
Kryptonite New-U New York Standard U-Lock

Image: The Kryptonite New-U New York Standard U-Lock, featuring a yellow crossbar and black shackle.
- Shackle: 16mm hardened MAX-Performance steel, designed to resist hand tools, bolt cutters, and leverage attacks.
- Locking Mechanism: Double deadbolt anti-rotation design.
- Cylinder: Disc-style cylinder with center keyway, pick and drill resistant.
- Dust Cover: Sliding dust cover protects the cylinder from dirt and debris.
- Keys: Includes three stainless steel keys, one with an LED key fob for low-light visibility.
- Security Rating: Rated 9 out of 10 on the Kryptonite security scale.

Image: Close-up of the Kryptonite New-U New York Standard U-Lock, highlighting the 16mm hardened steel shackle and the patented "PASS-THRU" crossbar design for enhanced anti-rotation.
Kryptonite Keeper 785 Integrated Chain Lock

Image: The Kryptonite Keeper 785 Integrated Chain Lock, showing the black chain with white Kryptonite branding and the integrated lock head.
- Chain Links: 7mm four-sided chain links made from 3T MANGANESE STEEL.
- End Link Design: Patent-pending design secures the chain to the hardened deadbolt, eliminating critical vulnerability.
- Deadbolt: Hardened deadbolt design for extra holding power.
- Cylinder: High security disc-style cylinder, pick and drill resistant.
- Keys: Includes two ergonomic "I" keys.
- Sleeve: Durable weather-resistant nylon sleeve prevents scratches to your bicycle.
- Length: 33.5 inches (85cm) chain length.
Setup and Installation
U-Lock Transport (FlexFrame-U Bracket)
The New York Standard U-Lock includes a patented FlexFrame-U Bracket for convenient multi-location transport on your bicycle frame. Follow the bracket's instructions for secure attachment. Ensure the bracket is tightly secured to prevent movement during transit. Periodically check the bracket's tightness, as prolonged use may cause it to loosen.
Chain Lock
The Keeper 785 Integrated Chain Lock does not require specific installation onto the bicycle for transport, but can be wrapped around the seat post or carried in a bag. Its flexible nature allows for various securing methods.
Operating Instructions
To maximize security, always aim to lock your bicycle frame and at least one wheel to a fixed, immovable object. The combination of the U-lock and chain lock provides enhanced flexibility for securing multiple components or larger objects.
Using the New-U New York Standard U-Lock
- Insert the key into the cylinder and turn to unlock the shackle.
- Remove the shackle from the crossbar.
- Position the U-lock around your bicycle frame, wheel, and a fixed object (e.g., bike rack, lamppost).
- Re-insert the shackle into the crossbar, ensuring both ends are fully engaged.
- Turn the key to the locked position and remove it.
- Slide the dust cover over the keyway to protect it from elements.
Using the Keeper 785 Integrated Chain Lock
- Wrap the chain around your bicycle frame, wheel, and/or a fixed object.
- Insert the end link into the integrated lock head.
- Turn the key to the locked position and remove it.
Tip: For optimal security, try to fill as much of the U-lock's internal space as possible with your bike frame and the object you are locking to, minimizing space for leverage attacks.
Maintenance
- Cylinder Care: Regularly apply a small amount of lubricant (e.g., WD-40 or a specialized lock lubricant) into the keyway of both locks, especially after exposure to wet or dusty conditions. This helps maintain smooth operation and prevents corrosion.
- Dust Cover: Always ensure the sliding dust cover on the U-lock is closed when not in use to protect the cylinder from dirt and moisture.
- Cleanliness: Keep the locks clean from excessive dirt and grime. Wipe down the shackle and chain sleeve with a damp cloth as needed.
- Key Care: Avoid forcing keys if they feel stiff. Lubricate the cylinder if resistance is felt. Store spare keys in a safe, memorable location.
Troubleshooting
Lock Mechanism Sticking or Difficult to Turn
If the key is difficult to insert or turn, the lock cylinder may require lubrication. Apply a small amount of lock lubricant into the keyway and work the key in and out several times. Avoid using excessive force, as this can damage the key or cylinder.
FlexFrame-U Bracket Slipping
If the FlexFrame-U Bracket for the U-lock is slipping on your bike frame, ensure it is installed correctly and tightened securely. The bracket includes a rubber piece to enhance grip; verify it is properly positioned. If slipping persists, consider adding additional non-slip material or securing the lock in a backpack for transport.
Specifications
| Feature | Detail |
|---|---|
| Brand | Kryptonite |
| Model (U-Lock) | New-U New York Standard |
| Model (Chain Lock) | Keeper 785 |
| Lock Type | Key Lock |
| Material | Alloy Steel, Stainless Steel, Vinyl (U-Lock); 3T Manganese Steel, Nylon (Chain Lock) |
| U-Lock Shackle Diameter | 16mm |
| U-Lock Interior Dimensions | 4" x 8" (10.2cm x 20.3cm) |
| Chain Link Diameter | 7mm (four-sided) |
| Chain Length | 33.5 inches (85cm) |
| Included Keys | 3 for U-lock (1 with LED), 2 for Chain Lock |
| Security Rating (Kryptonite) | 9/10 (New York Standard U-Lock) |
Warranty and Support
Key Safe Program

Image: Two black Kryptonite keys with an ergonomic design, alongside the "Key Safe Program" logo.
Kryptonite offers a Key Safe Program. In the event you lose your keys, Kryptonite will ship your first two replacement keys globally, free of charge. Registration is typically required for this program. Refer to the official Kryptonite website for registration details.
Anti-Theft Protection Offer (ATPO)
This product includes an Anti-Theft Protection Offer (ATPO) for up to $4,000 reimbursement for one year. This offer is subject to specific terms and conditions, including product registration and proper locking techniques. Please visit the official Kryptonite website for full details and to register your product.





