Not sure exactly what you mean regarding the different version.
Freerider Recharged is available both here at Itch and on Steam. It is a different version than Freerider Classic and needs to be purchased separately.
https://fpv-freerider.itch.io/fpv-freerider-recharged
http://store.steampowered.com/app/813530/FPV_Freerider_Recharged/