10-speed 12-25 <a href="https://en.wikipedia.org/wiki/Campagnolo" class="extiw" title="en:Campagnolo">Campagnolo</a> Centaur <a href="https://en.wikipedia.org/wiki/Freehub" class="extiw" title="en:Freehub">cassette</a> for a <a href="https://en.wikipedia.org/wiki/racing_bicycle" class="extiw" title="en:racing bicycle">racing bicycle</a>, disassembled.
<a href="//commons.wikimedia.org/wiki/User:Ximeg" title="User:Ximeg">Ximeg</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>