There's a certain enticing lure of the forbidden when you do something you're told that your bike wasn't meant to do. Just ask Matt Spears and his lengthy YouTube history of Gold Wing enduro riding, Hayabusa-ing at Moab, and more. Honestly, it's an entire genre unto itself.
But some bikes are lighter than others, right from the factory. Others are, let's say, heavy for their size. Lots of people love the Kawasaki KLR 650 for a number of reasons, but absolutely none of them are because it's a featherweight machine.
The original Royal Enfield Himalayan 411 had (and has) plenty of fans around the world, though it's now been somewhat overshadowed by the much-improved Himalayan 450 that came after. Still, that means it's easier than ever to get your hands on a wrecked Himmy 411 and do what you want with it, provided you live in a place that lets you buy wrecked bikes to turn into something new. Luckily, the guys at 999 Lazer do, so they did.