The Cane Creek seat post shim is a precisely manufactured accessory designed to adjust the diameter of seat posts. With a CNC-machined design, this shim allows for the adaptation of seat posts with a diameter of 25.4 mm to a frame with 27.0 mm. Made from high-quality aluminum, the shim provides a robust and durable solution for cyclists looking to optimally fit their seat post to their frame. With a length of 100 mm and a weight of just 0.02 kg, the shim is lightweight and unobtrusive, making it a practical addition to any bike. The black color offers a neutral look that seamlessly integrates into various bike designs. This seat post shim is an essential accessory for anyone who values a precise fit and improved performance of their bike.