Sounds like the guy has an underdeveloped manhood problem but still has the pathetic urge to whip it out and pee in public every chance he gets. Tell him that he's probably right, and that his stock Harley "entry level" 883 is waaaaaay more motorcycle than you could possibly ever aspire to own and that "you just don't see too many of those" around.
Then give him a big ol' wink, mention "Brokeback Mountain" under your breath, and walk away chuckling softly and shaking your head.
