This alarm is awesome. Scorpio has done this right. Customer service is really good. Would I recommend this product? Hell yes! Install was easy. Saved a little on my insurance,too. If you need details on how it works, just read the description, it works just as it says it does. I ordered one elsewhere, but when I realized I would likely die of old age before I got it, I cancelled the order and ordered form Motorcycle Superstore. I'm glad I did.
I normally don't write reviews, unless a product is exceptionally bad, or exceptionally great. This chain and lock are in the great category. The chain IS very heavy, but in my mind that is a good thing. The lock is very stout, and easy to use.
I just completed a two week road trip and used this product to secure my bike to the bike rack on the back of my car. The bike rack was the "weak link" not this product. It would have been easier for a thief to cut the rack off the back of the car than to break this product. It is well worth the price, just for the peace of mind.
It locks my helmet. I wish they had more (smaller) sizes. I made it fit by adding tape to the bar. Install was easy but make sure you don't want to take it off ever cause the screws make it so that you can tighten but can't untighten. Good if you're worried about someone taking your helmet, bad if you change your mind about putting a lock on your bike. Before I bought it, I read the reviews about it being a pain to use the key to lock it. It really isn't that annoying.