Will this trek beach cruiser work

[Philingroovie]

I'm brand new to this Wanted to put a bbr racing series stage 3 engine on this cruiser could you tell me if it will fit on this frame any advice is appreciated because I have no idea what I'm doing

 

[Greg58]

I would say yes, the beach cruiser has the most room of any standard bicycle frame. I have two. Welcome to the forum.

 

[waynesdata]

Nice bike. You may want to read the BBR engine reviews on google and amazon.