Pitlock saddle clamps are available in 28.6mm (for seat tubes with a diameter of 27.0 – 28.6mm); 31.8mm (for seat tubes with a diameter of 30.2 – 31.8mm) & 34.9 (for seat tubes with a diameter of 33.3mm
- 34.9mm). The above sizes refer to the internal diameter of the saddle clamp. Use a Pitlock Saddle Clamp to replace saddle clamps which will not accept the Pitlock Seat Post Bolt.PISC2866 28.6mm Silver PISC286B 28.6mm Black PISC3186 31.8mm Silver PISC318B 31.8mm Black PISC3496 34.9mm Silver PISC349B 34.9mm Black