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    • USE Aluminium Shim

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      • We’re very sorry but we don’t know when this item will be back in stock.

USE Aluminium Shim

The USE shim system allows you to fit a post into virtually any frame size. Our shims are made to 100mm length and are longer than other shims on the market. This gives your seatpost much better support inside the frame. All shims are designed with a "top lip" to stop shim sliding into the frame.


  • The Aluminium shims are machined to very high tolerances from 6082 T6 Aluminium and then black anodised to protect from corrosion.

Buy USE Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery costFREE
  • Delivers toUnited States of America
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or fitted.

    More information on returns
  • Pay by Bank Transfer, PayPal or Card


Buying Guide

  • We've got everything you need to know in our buying guide.

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