About The Product
- Kryptonite security levels: 1 (Low) - 10 (High)
- New hardened deadbolt anti-rotation design
- 12mm hardened steel shackle resists hand tools
- Includes 2 stainless steel keys with ergonomic design to reduce the amount of torque and keep them from bending or breaking
- Includes side mount snap-in bracket
- Disc style cylinder with center keyway
Secure Your Ride with the Kryptonite Keeper U-Lock 4 x 8" - The Ultimate Bicycle Lock for Bike Enthusiasts and Commuters
Enhanced Security with Premium Materials
Constructed with a 12mm hardened performance steel shackle, the Kryptonite Keeper U-Lock delivers exceptional strength and durability. Its hardened deadbolt anti-rotation design effectively resists twisting and cutting attacks, providing top-tier protection against theft. The vinyl coating not only offers a sleek, black aesthetic but also safeguards your bike's finish from scratches and corrosion, making it ideal for outdoor use.
Advanced Engineering & Components
Equipped with a disc-style cylinder featuring a center keyway, this keyed lock ensures high security and smooth operation. The patented anti-rotation double deadbolt shackle enhances resistance against lever and torsion attempts, securing your bike with confidence. The lock's security rating of 5 out of 10 strikes the perfect balance between portability and robust theft deterrence, suitable for urban environments and high-risk areas.
Innovative Features & Technology
The Kryptonite Keeper U-Lock includes a side mount, snap-in transportation bracket, allowing quick and convenient attachment to your bike frame for easy Carrying. It comes with two stainless steel keys and is part of Kryptonite's Key Safe Program, offering owners peace of mind in case of key loss. The lock also features a lifetime warranty, showcasing Kryptonite's commitment to quality and reliability.
Styling & Versatility
Designed in sleek black with a compact 4" x 8" internal lock size, this U-Lock is perfect for securing bikes, scooters, and other personal property. Its versatile 4-foot Flex Cable expands locking options, providing additional flexibility for securing multiple items or anchoring your bike to fixed objects. The included side mount bracket ensures your lock is always within reach, whether parked downtown or at a trailhead.
Performance & Use Cases
Ideal for city commuting, short and long-term bike parking, and high-theft risk areas, the Kryptonite Keeper U-Lock offers peace of mind with its high-security features and innovative design. Its 12mm hardened steel shackle and anti-rotation technology make it resistant to common theft methods, while the vinyl coating keeps your bike's finish pristine.
Additional Benefits
- Includes Kryptonite's renowned Key Safe Program, offering reimbursement in the event of theft due to lock compromise (with paid registration).
- Lightweight at just 2.05 lbs for easy portability without sacrificing strength.
- Comprehensive security package with 2 stainless steel keys and durable side mount bracket.
Trust Kryptonite, the industry leader in bike security, and safeguard your valued ride with the Keeper U-Lock 4 x 8". Designed for cyclists who demand security, durability, and style. Order yours today and ride with confidence!
Keywords: Bicycle U-Lock, Bike Lock, Kryptonite Keeper, Antitheft Bike Lock, Hardened Steel Shackle, City Bike Security, Bike Lock with Cable, Bicycle Lock with Bracket, High Security Bike Lock, Professional Bike Lock, Outdoor Bicycle Security, Keyed Bike Lock, Durable Bike Lock, Compact Bike Lock
- High-security 12mm hardened steel U-lock shackle provides superior protection against cutting and twisting attacks, ideal for high-theft areas.
- Patented anti-rotation double deadbolt design enhances lock robustness by preventing pivoting or forced entry, ensuring your bike stays secure.
- Includes a durable side mount snap-in bracket and vinyl coating to safeguard your bicycle's finish while offering convenient transportation and storage options.
- Comes with two stainless steel keys and access to Kryptonite's Key Safe Program, offering added peace of mind with a lifetime warranty and theft reimbursement option.
- Versatile 4 x 8-inch internal dimensions with a sleek black finish make this U-lock perfect for securing bikes in urban, professional, or recreational settings, combining style and protection.
| Specification | Value |
|---|---|
| Manufacturer | KRYPTONITE |
| Manufacturer Part No. | 004196 |
| Universal Product Code | 720018004196 |
| Invoice Description | LOCK KRY U KEEPER-12 STD 4x8 wBRKT |
| Shipping Weight | 2.14 lbs. |
| Package Dimensions | 9.75 x 6 x 1.5 |
| HTS Number | 8301.10.9000 |
| Country of Origin | TAIWAN |
| Diameter | 12mm |
| Length | 4x8"/10.7x20.32cm |
| Type | Key |
| Color | Blk |
| Rating | 5 of 10 |
| Bracket | Included |
| Model | 004196 |
| 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
