Make a Super Cub Trial Special

The second trial arcab project that we have been doing since the end of last year
I enjoyed the Mini Bye Panick Enduro, so I'm making another bike that can go to it.
The base this time is Cub 50, now it is 50cc, but I want to use a normal engine of 90.
The front fork is MTX50 and the rear suspension is for cross cubs.
The rear suspension was stiff, so I laid it down.