'American Chopper'

NAMES Paul Teutul Jr. and Paul Teutul Sr.
AGES 29, 55
MUSTWORTHINESS More than 3.5 million fans tune in each week to ''American Chopper'' on the Discovery Channel to watch the father-son duo build, bike, and bicker...and bicker. The AOL spokesmen are so popular that die-hard fans -- and even not-so-die-hard fans -- stalk their Rock Tavern, N.Y., shop to see Jr. and Sr., the man behind the highly hyped, lazy-boy-kicking size 12s.
CHOP-SHOP CONFESSION ''We're starting to get sick of the theme bikes,'' admits Paul Jr., who as Orange County Choppers' chief designer has created more than 15 themed choppers, including the famed Fire, Spider-Man, and Statue of Liberty bikes.
SAY IT AIN'T SO! It ain't. When Twentieth Century Fox came knocking, Paulie found that he still had a little theme-bike love left in him. ''We're building a bike for 'I, Robot' [starring Will Smith]. But it's a compromise: I decided that we're just going to build a freaky-looking, space-age bike and not try to get caught up too much in making it look like a robot.''
SHIFTING GEARS, WHAT'S WITH THE FAMILY FEUDS Survey says! Paul Jr.: ''I blame the bikes. They always give us a reason to argue.'' Paul Sr.: ''That and because you're kinda lazy.''
NEXT ''Chopper'''s second season, airing Mondays at 10 p.m.