Hi, For my self-built injection system I'm looking for a compact twin throttle body, minimum diameter 56mm each. I know the 2006 Aprilia Tuono 1000R has a 57mm twin one but it's very hard (or very expensive) to get one. Anyone know a list of motorcycle twin throttle bodies and their diameters? Brand is not important, but (of course...) size matters ;-) Kind regards, Otto.