Aprilia 5.5 Street by Luca Barthe 550cc Aprilia by Luca Bar and its 70hp of pony power should be more than enough “umpf” to get you into trouble on this svelte frame and body. While we are suckers for a v-twin (especially in a dirt bike frame), what really catches our attention is the styling Bar has done to the bike. Showing off the motor with a minimalist fairing, and then slinging the exhaust