Fixing a bent mech. hanger ;-(

Zardoz said:

Just repaired my bike (faulty shifters) lovely ride etc etc but two
miles from home I managed to throw the rear mech into the spokes.

I've taken the chain and the mech off and most of the damage seems to
be with the hanger (it's a Peugeot frame, alloy tubing), twisted and
bent inwards. I've bent it back a little way with mole grips. Anyone
got any good tips to true it up? I've got access to a workshop if I
need to make a jig... but it might be easier to try my trusty LBS.

Nice evening ride though :-)
And I've got my MTB for tomorrow :-))

Z

Park Tools do a device for checking the alignement, would be easy to copy
IMHO, check out their website.

In article <[email hidden]>, MSeries

Quoted message said:

Park Tools do a device for checking the alignement, would be easy
to copy IMHO, check out their website.

Copyright? They may have spent a lot of devlopment time on the jig?

--
A T (Sandy) Morton
on the Bicycle Island
In the Global Village
http://www.millport.net

in message <[email hidden]>, Zardoz

(') said:

Just repaired my bike (faulty shifters) lovely ride etc etc but two
miles from home I managed to throw the rear mech into the spokes.

I've taken the chain and the mech off and most of the damage seems to
be with the hanger (it's a Peugeot frame, alloy tubing), twisted and
bent inwards.

Is it a sacrificial replaceable hanger, or just part of the frame? If
the former, get a new one and breathe a sigh of relief. If the latter,
you're probably in for grief. Alu frames don't like being bent.

--
[email hidden] (Simon Brooke) http://www.jasmine.org.uk/~simon/
;; This email may contain confidential or otherwise privileged
;; information, though, quite frankly, if you're not the intended
;; recipient and you've got nothing better to do than read other
;; folks' emails then I'm glad to have brightened up your sad little
;; life a tiny bit.

"Simon Brooke" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

in message <[email hidden]>, Zardoz

(') said:

Just repaired my bike (faulty shifters) lovely ride etc etc but two
miles from home I managed to throw the rear mech into the spokes.

I've taken the chain and the mech off and most of the damage seems to
be with the hanger (it's a Peugeot frame, alloy tubing), twisted and
bent inwards.

Is it a sacrificial replaceable hanger, or just part of the frame? If
the former, get a new one and breathe a sigh of relief. If the latter,
you're probably in for grief. Alu frames don't like being bent.

I agree with Simon - you'll need to be careful if it's an integral aluminium
hanger.

If you feel that you can straighten it, it's possible that I may be able to
help you, because I have one of the Park tools to which someone else has
alluded. I'm in north Essex - how about you?! It would cost a lot to post
both ways, unfortunately, because it's heavy - I suspect that the LBS repair
would be cheaper. Let me know if I can help; I obviously don't want anything
for its use.

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Quoted message said:

If you feel that you can straighten it, it's possible that I may be able to
help you, because I have one of the Park tools to which someone else has
alluded. I'm in north Essex - how about you?! It would cost a lot to post
both ways, unfortunately, because it's heavy - I suspect that the LBS repair
would be cheaper. Let me know if I can help; I obviously don't want anything
for its use.

Thanks for the offer. It's a Reynolds alloy which is some sort of
steel (and there's not a replacable dropout).

I'll drop it in the LBS and have them sort it out.

zardoz said:

It's a Reynolds alloy which is some sort of
steel (and there's not a replacable dropout). I'll drop it in the LBS

and have > them sort it out.

More work with the mole grips could possibly sort it but it would indeed
be more sensible to leave it to the LBS if you can't easily get the angle
correct.

~PB