Classically sprung with double rails for supreme comfort, B66 and B66 S are the ideal all-rounders for daily city or touring use in a rather upright posture. They are most appropriate for cyclists who set their handlebars higher than their saddles. Classically sprung with double rails for supreme comfort, B66 and B66 S are the ideal all-rounders for daily city or touring use in a rather upright posture. They are most appropriate for cyclists who set their handlebars higher than their saddles. Unique- handmade in England in the time-honored fashion since 1927 7/8"seatpost clamp included