Advertised HP, like advertised weight, is measured at the tip of the ad writer's tongue and is subject to change.

BTW, has anyone actually weighed their bike?
The 504lb(dry) listed for a Speedmaster must be, what, maybe 535lb with all fluids?

Steelheart- '03 Speedmaster Black/Yellow The Hayabusa Killa 16" Shorties/140 mains/Airbox drilled Procom CDI "There is no cure for Celibacy. But we can treat the symptoms."