The top speed of the Suzuki SV650 is in then 130 range, whiich isn't fast when compared to liter + performace bikes.
It's quickest on twisty hilly roads like we have here in Western Oregon. It's the most fun bike I've ever owned. :)
Isn't the Yamaha Road Star one of the most popular metric V-Twins to hop up?
It seems I've read about some kind of records they've set at the drag strip.
It's gratifying to think that Road Stars *might* set records.
Yamaha launched Road Star with the goal of having it customized -- when the bike was first released, there was already a large Yamaha catalog of add-ons (mostly "billet" junk -- expensive aluminum-shiny things to hang on every surface). I'm still waiting for an oil cooler add-on. Anyway, there is now an approved "Commander" hop-up kit (pipes, jets, ignition module) that leads to an across-the-range improvement in rpm and hp.
The Road Star comfort range tops around 75; a larger front pulley wheel would help.
One of these days I'll have to buy a real speed demon (Hayabusa or whatever). It's amazing to me that a smaller (650 cc) bike could go 130; the Road Start tops out around 115.