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OnGuard Bulldog Series U-Lock 4.5x9" Ultra-Hardened Steel Shackle with 4' Cable and Universal Bracket
Reference Number: 4W35V1
Secure Your Bicycle with Confidence Using the OnGuard Bulldog Series U-Lock 4.5 x 9" with 4' Cable and Bracket
Optimize your bike security with the premium OnGuard Bulldog Series U-Lock, designed to provide unmatched durability and high-level protection for your bicycle. Crafted from hardened ultra-steel and featuring advanced locking mechanisms, this U-Lock is perfect for cyclists seeking reliable theft deterrence combined with versatility and ease of use.
Materials & Construction
Constructed with 13mm ultra-hardened steel shackles reinforced with a durable sleeve, the Bulldog Series offers maximum cut resistance and tamper-proof security. The vinyl coating and dust covers safeguard critical components from scratches, dirt, and corrosion, ensuring longevity and consistent performance in all weather conditions.
Performance & Engineering
With a pull strength of over 4.6 tons, this lock resists forced attacks such as cutting, drilling, and picking. The double bolt locking mechanism secures the crossbar at two points, enhancing overall strength and resistance against theft. The included 4-foot cable provides additional flexible security options, allowing you to lock multiple items or secure your bike to static structures with ease.
Components & Technology
The Bulldog Series features a user-friendly keyed locking system with included micro-light keys for quick access during low-light conditions. Available in multiple models, including the long shackle (LS), lean and mean (LM), mini (Mini), and more, ensuring a perfect fit for various bike sizes and security needs. Each lock includes a universal mounting bracket for convenient everyday carry, compatible with most bicycle frames.
Style & Use Case
Designed for urban commuters, mountain bikers, and casual riders alike, the Bulldog Series combines rugged durability with sleek black and yellow accents for a stylish look. Whether you need a compact mini lock for quick errands or a long-shackle model for maximum coverage, this lock caters to diverse cycling scenarios, from city streets to trail rides.
Innovative & Differentiating Features
- Free 1-year anti-theft guarantee offers peace of mind
- Multi-size/position mounting bracket for customized fit and portability
- Includes five high-security keys, one equipped with a micro-light for convenience
- Available with a user-resettable 4-digit combination option for keyless access
- Certified to withstand attempts with anti-drill and anti-pick resistance technology
Specifications:
- Length: 9 inches (228mm), with internal lock size of 4.5'' x 9''
- Width: 4.5 inches (114mm)
- Thickness: 13mm hardened steel shackle
- Lock Style: Keyed
- Cable Included: Yes, 4 feet (1219mm) with lock loops
- Mounting Bracket: Universal, multi-position included
- Color Options: Black/Yellow
- Model Name: Bulldog DT + 1219mm Cable
Invest in the OnGuard Bulldog Series U-Lock for unbeatable security, rugged performance, and peace of mind wherever your cycling adventures take you. Protect your bike today with a lock trusted by cyclists worldwide for durability and reliability.
- Enhanced security with double bolt locking mechanism locking the crossbar on two sides for added strength and resistance against theft. Featuring a 13mm ultra-hardened steel shackle with reinforced sleeve, providing maximum cut resistance and anti-drill protection to safeguard your bike. Includes a versatile 4-foot cable with lock loops, high-quality universal mounting bracket, and five durable keys (including one micro-light key) for convenient access and flexibility. Designed with dust covers and vinyl coating to protect components from damage, ensuring long-lasting durability in various weather conditions. Available in long shackle (LS), standard (STD), and mini models, offering optimal style and use case versatility for different bike security needs.
| Item Specifications | |
|---|---|
| Length | 9 |
| Lock Style | Keyed |
| Cable Included | Yes |
| Width | 4.5 |
| Type | Key |
| Rating | 65 of 100 |
| Model | 8012 |
| Bracket | Included |
| Bracket | Universal bracket included |
| Length | 115x230mm |
| Lock Style | Key |
| Defined Color | Black |
| Thickness | 13mm |
| Internal Lock Size Imperial | 4.5''x9'' + 4' |
| Length x Width (mm) | 228x114 |
| Lock Type | Key |
| Color | Black/Yellow |
| Model Name | Bulldog DT + 1219mm Cable |
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.- Be sure you are using the US site: https://www.ebay.com
- Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
- Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
- Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
- 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.
