Originally Posted by
Gresp15C
Just the motor.
But it's interesting that I have two nearly identical bikes, except one is laden with all of the commuter encumbrances, and the other is stripped down. The stripped down one is certainly a lot more fun to ride in good weather when I have nothing to transport.
Same here - 2 Bromptons one with no fenders or rack and ultralight parts. Certainly "feels" more nimble and fun, while the other is a heavy but versatile monster. I always take the light one out if I can.