Okay so I designed a coaster for a RCT3 contest some time ago and I deceided to use it for a new park. So here it is!
Overview.
Twisty goodness
The final little hill before the brakes
Helix inside a building
MCBR
That hill produces some massive airtime!
Cool idea! But the inversions after the double looping and before the first MCBR are taken way to fast, and I doubt a motorbike coaster will ever have inversions.