# AFS Pure 900/700 fuselink

**URL:** <https://forum.progressionproject.com/t/afs-pure-900-700-fuselink/5252>\
**Category:** Prone Surf Foiling\
**Created:** [April 29, 2024, 10:20am UTC](https://forum.progressionproject.com/t/afs-pure-900-700-fuselink/5252 "2024-04-29T10:20:51Z")\
**Posts on this page:** 1\
**Showing post:** 36

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**Author:** ![jondrums](https://avatars.discourse-cdn.com/v4/letter/j/7ea924/32.png) [@jondrums](https://forum.progressionproject.com/u/jondrums)\
**Post date:** [January 13, 2025, 8:32pm UTC](https://forum.progressionproject.com/t/afs-pure-900-700-fuselink/5252/36 "2025-01-13T20:32:49Z")

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> [@FoilATX](#):
>
> It just occurred to me but it could be thought of like seat post height on a mountain bike. If pedalling efficiency is your priority a high seat post is better but if you’re bombing downhill a low seat post feels better however the bike is still the same.

Which of course gives me an idea that belongs on the [no-such-thing-as-a-ridiculous-idea](https://forum.progressionproject.com/t/no-such-thing-as-a-ridiculous-idea/6605/118) thread. Let’s make a lever operated tail shim mechanism to upshift/downshift tail angle

when dropper posts came out, it was like a revelation. I used to love my “quick-release” seatpost clamp so I could easily change seat position at the top of a climb. When it became lever operated without getting off the bike - amazing! The biggest mountain bike invention of the decade.

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