If you want speederbikes just like GC , then you know what you should do 
In episode 1 , Darth Maul went down a massive drop on his speederbike ...he didnt go flying off the cliff like a madhead.
This isnt to say there wont be a slight jump when goin up ramps ... it'll probably be abit looser ..but dont expect massive 100ft jumps or anythin.
"Government is the great fiction, through which everybody endeavours to live at the expense of everybody else."
Frédéric Bastiat