Bmx Motorized With Engine Motorising A BMX With A Whipper Snipper Motor?

Motorising a BMX with a whipper snipper motor? - bmx motorized with engine

I think a blender Snipper bike and I'm not sure. I could flock to the site Whipper Snipper engine of my rear tire and a bicycle wheel and the parity on the sale of identity and the engine jumps to travel. And I have the accelerator and brake, a graduate, but how the bike would slow down and stop the bike?