Introducing the On Guard Mastiff Combo 120Cm 6Mm - the ultimate security solution for those looking to protect their valuables. This heavy-duty cable lock features a thick 6mm steel cable that is virtually impossible to cut through, giving you peace of mind that your bike, scooter, or other belongings are safe from theft.The 120cm length of the cable allows you to easily secure your items to a variety of fixed objects, while the combination lock mechanism ensures that you never have to worry about losing keys. The user-friendly design makes it easy to set and reset your own personalized combination for added security.Whether you're a commuter looking to protect your bike during the workday or a traveler looking to secure your luggage on the go, the On Guard Mastiff Combo 120Cm 6Mm is the

Onguard Mastiff Chain Lock 6mm Titanium Reinforced Combination Bike Lock, Water & Heat Resistant, 4ft

Reference Number: 3NV3YW

High-Security Onguard Combination Chain Lock 6mm | 4-foot / 122cm | Black Titanium Reinforced

Enhance the security of your bike with the Onguard Mastiff Chain Lock, a premium combination lock designed for avid cyclists and urban commuters. This high-performance lock features a durable 6mm hex-link chain forged from hardened steel and reinforced with titanium, making it virtually impossible to cut or break. Its innovative materials and engineering deliver unbeatable security without adding unnecessary weight, perfect for bike riders seeking reliable protection on the go.

Materials & Construction:

Constructed from a hardened steel square link chain, this lock is permanently forged for maximum strength. Titanium reinforcement along each link provides superior cut resistance, elevating security standards for bicycle protection. The chain is equipped with a water- and heat-resistant cover, safeguarding against corrosion, abrasion, and weather elements to ensure longevity and dependable performance in all conditions.

Performance & Engineering:

Engineered for high security and durability, the Mastiff Chain Lock combines cutting-edge steel forging technology with titanium reinforcement to prevent theft attempts involving sawing or cutting tools. The lock features an easy-to-use 5-digit resettable combination mechanism, enabling quick access without keys-ideal for riders who prefer keyless convenience.

Components & Technology:

- Combination Lock: A secure 5-digit resettable digit code offers customizable access and eliminates key concerns.

- Hex-Link Chain: 6mm hex-link chain provides a robust structure resistant to leverage and physical attacks.

- Protective Cover: Water- and heat-resistant casing extends chain lifespan and prevents chain abrasions on your bike frame.

- High-Visibility Features: Bright yellow accents and easy-to-read digits enhance visibility and ease of use.

Style & Use Case:

Designed for urban commuting, bike storage, and high-theft risk environments, the Onguard Mastiff Chain Lock combines sleek black and yellow styling with practical portability. Its 4-foot (122cm) length offers versatile locking options-secure your bike frame and wheel to stationary objects quickly and reliably.

Innovative & Differentiating Features:

- Titanium reinforcement provides nearly unmatched cut resistance.

- Water and heat resistance safeguard against weather-related wear.

- Keyless 5-digit combination enhances convenience and security.

- Heavy-duty forged steel links ensure lasting performance.

Specifications:

- Model Name: Mastiff Chain

- Length: 122cm (48 inches)

- Chain Diameter: 6mm

- Color: Black with Yellow accents

- Lock Type: Combination (5-digit resettable)

Trust the Onguard Mastiff Combination Chain Lock for unbeatable security, durability, and style-perfect for cyclists who demand the best in safeguarding their ride against theft.

  • Unparalleled security with a durable 6mm titanium-reinforced hardened steel chain, providing superior cut resistance and peace of mind.
  • Constructed with high-strength, lightweight materials-featuring an 8-10mm hex-link chain and a water and heat resistant cover to protect against harsh weather conditions and bike abrasion.
  • Equipped with innovative locking technology: select either a keyed lock with five easy-to-use keys-including a micro-light for low-light visibility-or a resettable five-digit combination lock for quick, keyless access.
  • Designed for versatile use, this high-security chain lock is ideal for urban commuting, bike storage, or securing high-value bikes, combining style with robust performance.
  • Features high visibility, easy-to-read digital or key access, and a sleek black titanium finish, making it both a functional security solution and a stylish cycling accessory.
Item Specifications
TypeCombo
Lock TypeCombination
Length x Diameter (mm)1219x6
ColorBlack/Yellow
Model NameMastiff Chain

Why 365 Cycles?

365 Cycles is an Authorized Onguard Dealer, and we offer the Full Onguard Warranty!

Fast Shipping!

Professional Customer Service- available 7 days a week
Check out our 200,000+ amazing reviews!

365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
  • Friday afternoon -Sunday orders ship the following Monday
  • Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.

Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.

Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



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Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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