Originally Posted by
Delmarva
The head tube angle and fork rake are probably much steeper than your old bike. Also consider that after several decades of not riding that your responses and balance are not as sharp as when you were a teen. I know my responses are not what they once were but my common sense has improved considerbly. I enjoy my hybrid more than the road bike now.
^^^ This. Beach cruisers typically had a 66-67.5* head tube angle, a 69* seat tube angle, about a 47-48" wheelbase and a massive amount of trail compared with a modern mountain bike with a 71* headtube angle, a 73* seat tube angle, a 42-43" wheelbase with much less trail to allow for quicker steering response. The steering was purposely slow and the stability was purposely high on those older bikes, so riding with no hands was a breeze.