long tail bike

I recently received the new Yuba Mundo V3.3. Yuba made some minor changes to their frame. They have taken out 2 extra seat stay supports. The frame modification opened up new avenues for electric pedal assist. Previous version of the Yuba Mundo limited you to front or rear hub conversion kits. Now, you can actually configure a mid-motor set-up. I prefer the mid-drive due to the fact it uses your bicycle's drivetrain and it is definitely more efficient that way. I believe that the gentleman behind Stoke Monkey has proven that already.