Onguard Mastiff 8021 6 FT Chain Lock - Harley & Indian V-Twin
About Onguard
Onguard parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Onguard item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.
The Onguard Mastiff 8021 is a heavy-duty 6-foot chain lock engineered to provide serious security for your V-twin motorcycle. Its robust construction, featuring 10mm titanium-reinforced square links and dual X2P cylinder locks, makes it a formidable deterrent against theft.
Why riders pick this
- 6-foot hardened chain with 10mm square links
- Titanium-reinforced for maximum cut resistance
- Dual X2P cylinder locks for enhanced security
- Protective rubber cover prevents frame damage
- Includes 5 laser-cut keys, one with LED light
Protecting your Harley-Davidson or Indian Motorcycle is paramount. This Mastiff chain lock offers a high level of security, allowing you to confidently secure your bike to fixed objects or through its frame and swingarm. The integrated lock head stays attached to the chain, simplifying the locking process, while a protective double rubber cover prevents any scratches to your bike's finish.
Uncompromising Security Features
- 6-foot length with 10mm titanium-reinforced hardened steel square links
- Dual X2P cylinder locks provide superior pull and pry resistance
- Integrated lock head remains attached to the chain for convenience
- Protective double rubber cover prevents damage to your motorcycle's paint
- Includes five laser-cut keys, with one featuring a built-in micro-light LED
Robust Theft Deterrent for V-Twins
Designed with the serious rider in mind, the Onguard Mastiff 8021 provides a significant barrier against theft. Its substantial weight and hardened construction send a clear message to would-be thieves. Whether you're parking at home or on the road, this chain lock gives you peace of mind that your valuable V-twin is well-protected.
Specifications
- Brand: Onguard
- Manufacturer Part #: 45008021
- UPC: 768661280215
- Chain Length: 6 feet (approximately 110cm)
- Chain Diameter: 10mm (0.39 inches)
- Weight: 10.201 lbs
- Country of Origin: China (Mainland)
Common questions
How long is this chain lock?
The Onguard Mastiff 8021 chain lock is 6 feet (approximately 110cm) in length, providing ample reach to secure your motorcycle to various anchor points.
What kind of protection do the links offer?
The chain features 10mm titanium-reinforced hardened steel square links, designed to resist cutting and sawing attempts, offering a high level of security.
How many keys are included with this lock?
This lock comes with five laser-cut keys, including one key equipped with a built-in micro-light LED for convenience in low-light conditions.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Onguard |
| TYPE | Security |
| SKU | 57-9618 |
| WEIGHT | 10.2 lb |
