kernpanik 🐾 🕊️ ☮<p>Argh -- I bought a vintage <a href="https://chaos.social/tags/Marchisio" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Marchisio</span></a> thread-on freewheel in excellent condition for my <a href="https://chaos.social/tags/Bullseye" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Bullseye</span></a> <a href="https://chaos.social/tags/MTB" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MTB</span></a> hubs on eBay. It came today in the mail, and to my relief it looked ~exactly~ like the old one I want to replace. </p><p>But when I tried to screw the freewheel onto the hub, it didn't fit. 🤔 </p><p>Turns out there were different standards back in the day, two of which are ISO (34.92mm) and “Italian” (35mm). 😭 </p><p><a href="https://sheldonbrown.com/freewheels.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">sheldonbrown.com/freewheels.ht</span><span class="invisible">ml</span></a></p><p><a href="https://chaos.social/tags/VintageMountainBike" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>VintageMountainBike</span></a> <a href="https://chaos.social/tags/bicycle" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>bicycle</span></a> <a href="https://chaos.social/tags/cycling" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cycling</span></a> <a href="https://chaos.social/tags/MountainBike" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MountainBike</span></a> <a href="https://chaos.social/tags/VintageBicycle" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>VintageBicycle</span></a></p>