Biker Battleground Phoenix

Some consider Phoenix to be the custom-motorcycle-building capital, where shops compete for clients willing to pay upward of $150,000 for a fully customized product. This reality series follows five of the desert's top designers -- ranging from the archetype to the newcomer. The rival crews strive for a share of the personalized-rides milieu. "Godfather'' Paul Yaffe claims to have spawned the craze in Phoenix; hot-headed John Shope entered the business in the '80s and calls himself the industry…