Mine would do around 125mph without too much trouble. It was stripped down, probably 100lbs lighter, running a TZ upper fairing. Power was around 53bhp @ 8000rpm atw, stock was around 32bhp. Gearing was raised using an XL600 primary drive. Braking was taken care of by a GSXR 4-pot caliper and a 320mm FZR front disc.