If bigger really is better, you're looking at the best off-the-rack Harley-Davidson in captivity. Known as the FLHRSEI2 in Milwaukeese, its 98.4mm x 111.1mm cylinders add up to 103 cubic inches or 1690cc--the biggest factory-built Harley Big Twin yet. Except it's not exactly stock. Created as part of Harley's Custom Vehicle Operations (CVO) program, the Screamin' Eagle Road King is a limited-production, expensive piece: $27,995 ($28,095 in California) vs. $16,215 for a basic 2002 Road King. The CVO ensemble is also a painless way for Harley to run new ideas up the flagpole of public opinion and see how many checkbooks salute.