Function: this shim adapter converts your seatpost to another bigger size. Let you use current seatpost on another different bike. Recycle the seatpost save money, save environment and save time.
Material: Aluminum 6061 and full CNC process. Surface treatment anodized. Precision process make the surface clean, smooth and neat. You will feel its good quality adapter when you receive it.
Size: inner diameter and outer diameter is important. It will not work if size wrong. Inner diameter have to same to your old seatpost. Outer diameter have to same to your target new bike diameter.
Length: we offer 2 different length for your choose. Short version is 6cm/2.36inch , long version is 10cm/3.9inch. Both them are reliable and qualified for safe riding. But if you prefer a long one, you can buy the long one. If you want buy a cost effective one, buy the short one. Short version weight 6-49grams, long version weight 16-84grams.
★Pay Attention to Diameter Before Buy★ . Wrong diameter will not able to install, 25.4/27.2mm/28.6mm/30mm/30.4/30.9/31.6/33.9 they are different and not exchangeable. You can see your seatpost diameter if you take out it from the bike frame. 2 Years Warranty: We are confident to the product quality and offer 2 years warranty.
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