VBR-177 Derailleur Hanger Q

[mynameiswilson]

Hello all -

I've built my VBR-177 and have put about 100km / 600 miles on it. Loving it so far, BUT I am having an issue with the rear hanger.

The 177 has a two-piece hanger / collar situation. It's two pieces, and is held together with a single stainless bolt. This bolt regularly loosens, leading to a creak and eventually the axle coming out of the frame. I've greased it an reseated, and it still came apart.
I've just now put some thread-locker on the screw.

I've included a crude diagram.

So, three questions:

1. Anyone else have and solve this?

2. I'm using the stock thru-axle. Is it threaded through as much as it should be?

3. Mechanically speaking, does this not happen?

[eucalyptus]

Of course you should use Loctite on that screw! Blue 243 should do the job

[mynameiswilson]

Thanks - I've done that and will report back soon!

Anyone else have any responses to the other Qs?

[Irideslowly]

The t-a looks a bit short.

[mynameiswilson]

I've also discussed this with a mechanical engineer friends (who builds bikes) - and he has the same suspicions as I do: that this setup does not anchor the TA to the drive-side of the frame, save for that one little tiny screw.

But: I've emailed Chris at Velobuild. Will let you know.

[tjebakka]

Today the thread or bus (not sure) inside the frame gave up. So I cannot tighten the small screw into the frame anymore. Does anyone have a solution other than buying a new bike?

Nvm - the thread in the hanger itself was worn out. I fitted a spare and everything works again