Army Harley!
Now this is a Harley designed for ass-kicking. The MT500 is a military-grade Harley-Davidson, made through the 90s and into the 2000s, and they turn up on the market every so often, like this one that's on eBay right now for a few grand. Honestly, I really like the flat olive drab, and it looks like it fell out of Robotech, which makes geeks like me drool a bit.