It's different riding a bike and going to a track with top performance, driving on the limit.
BTW, Barrichello once tried Barros bike (when he raced for Pons with West sponsor).
A brazillian photographer heard about it and headed to Interlagos to take some pictures, but he never gave it to the press because Barrichello could get on trobule for riding a bike without Ferrari permission.
But this photographer had a picture of it in his wall in the office.
Another thing, Ricardo Rosset showed up in this day and wanted to try it too, bamn, in the first corner, after the back straight of Interlagos he felt and destroyed the bike!!!
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Rocker