Was he saying that you could not load a modified tune or just that the speed limiter is locked and can not be changed?
Either way, I would say ride the motorcycle loaded and see if you feel the need for more get up & go.
If so then I would suggest dropping a tooth on the front sprocket as your not likely hitting the rev limiter yet. That will let you get up to top speed a little faster. Loading a TTP tune would help optimize your performance with the current configuration.

edit: I wondered and fired up my old Windows laptop. After what seemed like a rather long time (slow OS, anti-virus updates, a reboot, browser update) I downloaded the latest VIN range tunes. My rather old version of TuneECU 2.5 will open 20515map but will not open the later 20741map. Not wanting to update the TuneECU app as my hardware is so old and this works for my needs, but it seems like something is different. And I was unable to see any indication of a speed limiter displayed (like the Rev limiter & Speedo Adj/correction) on the map I could open.

Last edited by MattyMo; 06/02/2017 10:42 PM.

09 America, some modifications