Uploaded February 2019 | Updated September 2026, 3 weeks ago

---

I was challenged by my viewers to try to re-assemble the Shimano Nexus 8 Speed Hub that I disassembled in my last video. The hub is a Shimano Nexus SG-8R20. Fortunately, I had my video of taking the hub apart, which helped me in figuring out how to put it back together again.

Shimano Nexus 8 Speed Hub - Dissection! Evisceration! Destruction!:
youtube.com/watch?v=k8qAn2D05R8

Here is the Shimano service manual:
si.shimano.com/pdfs/dm/DM-SG0003-05-ENG.pdf

For assembling the shift spring assembly, this video by Dan Burkhart was greatly helpful:
Shimano Alfine shift spring overhaul
youtube.com/watch?v=8or0llHZblo

* editing goof at 16:55 to 18:34 with one clip, and then a reshot version of the same clip. I redid it because I thought I could show it better. A little peek behind the curtain of shooting one of these videos.

▶ SUBSCRIBE & HIT THE 🔔 bit.ly/SubRJTheBikeGuy

👍 And please give my video a thumbs up 👍

▶FACEBOOK.com/RJTheBikeGuy
facebook.com/RJTheBikeGuy

▶TOOLS
rjthebikeguy.com/tools

▶SHIRTS
bit.ly/RJBikeGuyShirts

▶WEBPAGE
RJTheBikeGuy.com