Building a Sportster Iron 1200 with five total strangers

Harley-Davidson has just launched two new Sportsters: the Iron 1200 and the Forty-Eight Special. Both have throwback styling and graphics to commemorate the Motor Company's 115th anniversary, but don’t offer anything mechanically different. We're betting that there's a completely new Sportster model in the Milwaukee engineering pipeline right now. But we've also had 14 years to appreciate the current Sportster's strength: it's been customized in so many ways, there's a ton of parts—and inspiration—out there. Which was the premise for one of the strangest gigs I've ever attended as a moto journalist. Harley-Davidson know this well. So they invited a...