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Description
Our seatpost shims / reducers allow you to have a smaller size diameter seat post. These shims will insert directly into your bicycle frame and will allow you to use a seatpost with a smaller diameter.
Our Seatpost Shims are what you need w...
Reviews
5.0
4 ratings
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Great seat post
I bought this for my Biktrix Juggernaut Ultra Duo 4. Im over 300 lbs with lower back issues and this works great! You get a little squeak from it some times but nothing annoying. For me it is the difference between being able to ride and not.
T
Trevis · March 29, 2026
It greatly improved the ride
George · September 17, 2024
Assemblage parfait
Rien de bien mystérieux avec cette pièce. Elle fait bien la job, avec précision.
