Thomson Masterpiece Post 27.2mm 240mm Black Aly 0mm 158g ModelNumber=D1507 Drop-Stop ST is designed for

Drop-Stop ST is designed for Shimano 12-speed Hyperglide+ chains

The added stability

Multi Position Design: For optimal aerodynamics regardless of head tilt

Wider clearance for modern tires and wheelsets (up to 28c)

Thomson Masterpiece Post 27.2mm 240mm Black Aly 0mm 158g ModelNumber=D1507 Drop-Stop ST is designed forMade in the U. S. A.. 41mm seat rail grip length. 40% stronger on ultimate strength test than competitor posts. Approximately 40 grams lighter than the same size Elite post. Ellipse bore inside tube for optimum strength to weight ratio.. 200lb weight limit TECH SPECS Vendor Thomson Manufacture Number SP M102 BK Model Name Masterpiece Post Category Seatposts