About The Product
- Kryptonite security levels: 1 (Low) - 10 (High)
- 13mm hardened Max-Performance steel shackle resists cutting and leverage attacks
- Reinforced hardened cross bar design provides increased protection
- High security disc-style cylinder
- Anti-rattle bumpers reduce noise during transportation
- Rotating dust cover protects cylinder from dirt and debris
- Includes new transit Flexframe-U transportation system which allows for versatile carrying
- Protective vinyl coating
- 2 stainless steel keys
- Key Safe program
Secure Your Bike with the Kryptonite KryptoLok U-Lock 4 x 9" Black with Bracket - The Ultimate High-Security Bike Lock
Enhance your bike's security with the Kryptonite KryptoLok U-Lock, engineered for professional cyclists and everyday commuters alike. Crafted from rugged materials and backed by advanced security features, this 13mm hardened steel U-Lock ensures maximum protection against theft, twist, and cut attacks.
Materials & Durability:
Constructed with a hardened 12.7mm (13mm diameter) performance steel shackle and reinforced crossbar, the Kryptonite KryptoLok U-Lock offers superior resistance to cutting and prying. Its vinyl coating not only protects your bike's finish from scratches but also adds an extra layer of durability against the elements, ensuring long-lasting performance.
Performance & Engineering:
Designed for optimal security and convenience, this lock employs a patented Anti-Rotation Double Deadbolt shackle, significantly resisting twist and leverage attacks. The high-security disc-style cylinder features an anti-float mechanism to prevent disc movement during transit, maintaining the integrity of your lock at all times. With a security rating of 6 out of 10, it provides a robust defense suitable for high-theft areas.
Components & Technology:
Includes Kryptonite's innovative FlexFrame U-Bracket for multi-position, adjustable mounting-perfect for secure, hassle-free transport on any bike. Anti-rattle bumpers minimize noise and chatter, enhancing ride comfort. Plus, the lock comes with two stainless steel keys and access to the KeySafe Program, offering peace of mind with key replacement options. The FlexFrame system fits multiple off-set and adjustable configurations, allowing customized, secure placement.
Style & Use Case:
Designed with a sleek black finish and durable construction, the Kryptonite KryptoLok U-Lock is ideal for urban commuting, bike shops, and high-traffic areas. Its compact size (4 x 9 inches) combined with the included FlexFrame transport bracket makes it versatile and convenient for urban cyclists needing reliable, portable security.
Innovative & Differentiating Features:
- Patented Hardened Double Deadbolt for enhanced protection against twist and cut attacks
- Anti-Float Disc Cylinder with anti-rotation technology for increased security
- FlexFrame U-Bracket system for customizable, multi-position transport
- Anti-rattle bumpers to reduce noise during rides
- Lifetime warranty and Kryptonite KeySafe Program for keys replacement and owner protection
- Security Rating: 6/10, offering a balanced mix of security and portability
Item Specifications:
- Length: 9 inches (229mm)
- Width: 4 inches (101mm)
- Diameter: 12.7mm (13mm shackle)
- Weight: 2.9 pounds (1.31 kg)
- Color: Black with Silver accents
- Lock Type: Keyed
- Included: FlexFrame U-Bracket, 2 stainless steel keys, KeySafe access
- Additional Features: Anti-rattle bumpers, high-security disc cylinder
Protect your bike with confidence-choose the Kryptonite KryptoLok U-Lock for unmatched security, innovative design, and reliable performance. Perfect for urban riders, bike shop displays, and any cyclist valuing peace of mind on the road.
- High-security U-lock featuring a 12.7mm hardened steel shackle crafted from premium performance-quality steel for maximum cut and twist resistance.
- Equipped with a patented double deadbolt mechanism and pick-resistant disc cylinder, providing advanced protection against theft attempts, including drilling and picking.
- Includes innovative features such as a sliding dustcover to shield the locking mechanism from dirt and debris, along with anti-rattle bumpers for quieter, more secure transport.
- Designed with a versatile FlexFrame U-Bracket for easy multi-position mounting, allowing convenient, secure bicycle transport and storage on various bike frames.
- Comprehensive theft protection with registered owners eligible for reimbursement through Kryptonite's Anti-Theft Protection Offer, combined with a lifetime warranty for long-term peace of mind.
| Specification | Value |
|---|---|
| Manufacturer | KRYPTONITE |
| Manufacturer Part No. | 002031 |
| Universal Product Code | 720018002031 |
| Invoice Description | LOCK KRY U KRYPTOLOK STD 4x9 w/BRKT (H) |
| Shipping Weight | 2.75 lbs. |
| Package Dimensions | 11.05 x 6.4 x 2.55 |
| HTS Number | 8301.10.9000 |
| Country of Origin | CHINA |
| Diameter | 13mm |
| Length | 4x9"/10.7x22.8cm |
| Type | Key |
| Color | Blk |
| Rating | 6 of 10 |
| Bracket | Included |
| Shackle Type | Standard |
- Supplier:
- JBI
Bike Junkies offers no‑hassle returns and exchanges within 60 days of delivery. We want every customer to feel confident when shopping with us, and our return process is designed to be simple, fair, and fast.
Return Eligibility
To qualify for a return or exchange, the following conditions must be met:
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The item must be in new, unused, and uninstalled condition.
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All original packaging, tags, hardware, and accessories must be included and intact.
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Items showing wear, installation marks, damage, or improper use cannot be accepted.
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An order number is required.
Once your return is received at our warehouse, a refund will be issued within 5 days after inspection.
Refunds
Refunds are issued to the original form of payment once the returned item has been received and approved. If we are unable to refund to the original payment method, the refund will be issued as store credit.
Depending on your bank or credit card provider, it may take an additional 2–3 business days for the refund to appear in your account.
Exchanges
To make an exchange, simply complete the return process and then place a new order for the item you want instead. This ensures the replacement item is reserved and ships quickly.
How to Start a Return
To request a Return Authorization (RA#), contact us at support@bikejunkies.com. Please include your order number and the item you wish to return.
Once approved:
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You will receive a Return Authorization email with instructions.
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Print the prepaid label provided by us. ($9.99 will be deducted from your refund)
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Ship the item back within 7 days of the RA being issued as RA #'s are only valid for 7 days.
Please do not tape anything to the original product packaging. Place the item inside a proper shipping box. Using the manufacturer’s box as the shipping container will result in damage and the return may be rejected.
Be sure to keep your return tracking number. Powersport Junkies is not responsible for lost return shipments. You will receive a confirmation email once your return has been processed and refunded.
Defective, Incorrect, or Damaged Items
If you receive a defective, damaged, or incorrectly shipped item, contact us immediately. We will cover the return shipping cost and ensure the issue is resolved quickly.
Non‑Returnable Items
Certain items cannot be returned, including:
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Electronics with opened packaging or broken manufacturer seals
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Any part that has been installed or shows installation attempts
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Tools or chemicals that have been opened or unsealed
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Open‑box items with destroyed or missing packaging
Our Info
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Storefront name: Bike Junkies
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Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
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Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
This Shipping Policy explains how orders are processed, handled, and delivered by Bike Junkies, including delivery timelines, shipping coverage, and special conditions for military addresses. It is designed to give customers a clear understanding of what to expect when placing an order.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Order Processing and Handling
Orders are processed quickly to ensure fast delivery. Our standard handling time is 0–1 business days. Order cutoff time is 12 PM PST Monday-Friday and orders placed after that will be shipped shipped next business day.
Transit Times
Once shipped, orders typically arrive within 2–3 business days. Transit times may vary slightly depending on the destination, weather conditions, or carrier-related delays. Delivery estimates apply only after the order has left our facility.
Delivery Schedule
Standard delivery occurs Monday through Friday. Saturday delivery may be available.
Shipping Coverage
Bike Junkies offers free shipping to the lower 48 states of the United States. We do not ship to the following locations:
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Alaska
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Hawaii
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Puerto Rico
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Any international destination outside the United States
Orders placed with shipping addresses in restricted locations will be canceled and refunded.
Military Shipping (APO/FPO)
Bike Junkies ships to APO/FPO military addresses using USPS only.
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We cannot ship hazardous materials or oversized items to military addresses due to carrier and military mail restrictions.
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Transit times to APO/FPO locations may vary significantly depending on military mail processing.
Address Accuracy and Delivery Issues
Customers are responsible for ensuring that all shipping information provided at checkout is accurate and complete. Bike Junkies is not responsible for delays, lost packages, or delivery failures caused by incorrect or incomplete addresses. If a package is returned due to an address error, additional shipping charges may apply to resend the order.
Lost, Delayed, or Damaged Shipments
If a shipment is delayed, lost, or arrives damaged, customers should contact us promptly so we can assist with initiating a claim or resolving the issue with the carrier. While we support the process, final decisions regarding claims are made by the carrier.
Tracking Information
A tracking number is provided via email once the shipping label has been created. Tracking updates may take up to 24 hours to appear after the label is generated.
Shipping Restrictions
Certain items may be subject to shipping restrictions due to size, weight, or hazardous material regulations. If an order cannot be shipped due to such restrictions, we will notify the customer to arrange an alternative solution.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
For warranty issues please contact us at support@bikejunkies.com. Each Brand is different and we can provide instruction to complete warranty issues.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
