VX-2 speed adjust setting/code

Hello,

There seem to bee settings that can alter the max. speed setting of the Vectrix VX-2.
Is there anyone that can tell me how to adjust this top speed?
Word goes around that the lithium VX-2 has a top speed of 10KM/h higher than lead, 80KM/h

i'd really like to know how to alter these settings. Anyone?

Thanks!

Did you ever figure out how to do this?

There is probably a good reason why the lithium one goes faster - weighs less, and more importantly, the voltage under load will be higher.