I've got a B-66 on my beach cruiser which fits me perfectly.I just put my new Flyer Special on my townie commuter and I am in love with it also. The tilt of the seat is critical. I start with the nose tilted too greatly and keep adjusting tilt down till no pressure is felt on the tea bags. If I concentrate on relaxing my butt muscles, the pain disappears. Relax,pedal,bliss.