The Salsa Seatpost Clamp Lip Lock Model has a threaded seat collar as well as a pivoting stainless steel threaded insert which reduces bowing and fatiguing of the pinch bolt. Threaded seat collar, pivoting stainless steel threaded insert reduces bowing and fatiguing of the pinch boltLaser-etched logo30.0 clamp for most Salsa steel frames30.6 clamp for most Salsa Scandium framesLightly grease bolt threads prior to installationItem SpecificationsColorBlackWeight34gSeat Collar Diameter30mm