I secure everything but my boots with a ratty-looking cover and a lightweight cable lock (helmet, jacket, pants). I've also generally carried a Pacsafe mesh bag, but stuffing motocross boots into it is too much trouble, so I've usually just placed them underneath the bike, obscured by the cover. That's worked for me so far.

I've thought about installing some sort of hasp staple or cable loop onto each of my boots so that I could lock them to the bike, but I've never gotten around to it. The only things I've had stolen from me in 40 years of various kinds of travel have been shoes--twice. Ten years ago, my walking shoes were stolen right off my bike while I napped a couple of feet away in a park in Argentina. Replacing them was expensive and time-consuming. I'd hate to have to search in some remote backwater for motocross boots which fit my oddly-shaped feet, and I'd sure hate to have to pay for them.

I've met lots of riders who've had stuff stolen on the road--sometimes ruining trips. Mostly it's been due to leaving belongings unlocked out in the open. Sometimes it's been armed robbery away from the bike, or pilfering stuff left in a hotel room. I've also met tons of riders who've never had anything stolen, so I try to keep things in perspective.

I've tried using a motion-sensitive alarm, but no one has ever set it off except local kids looking for a bit of entertainment. Oh, and the wind. I don't even know where it is anymore--buried someplace out in the garage, I guess. One of my bikes has an alarm under the seat, but I've never bothered hooking it up.

Mileage varies, but I hope that's helpful.

Mark