The Masterpiece is Thomson's ultimate seatpost: it combines the strength and durability of the Elite post in a lighter package. Made in the USA it features a post and cradle machined from one piece of 7000 aluminum for durability and strength, long seat rail cradle limits saddle rails from bending, captive hardware and infinite tilt adjustment between -5 degrees and +29 degrees all in a package that's 40 grams lighter than a comparably sized Elite post. Features: All surfaces machined to remove weight Accommodates seat tube angles of 62 degrees or more 41mm seat rail grip length Weight limit of 200 lbs or 91 kg Specs: ColorSilver Defined ColorSilver Clamp StyleStandard Rails MaterialAluminum