I think steel is not aluminum. I'd worry that aluminum would break, but
far less so with steel. What's more, if your alternate is to take it to
a frame builder and have a new one installed, that's a fine backup plan
if and when the hanger breaks when you bend it a second time. In other
words, if you plan to replace it anyway, what have you got to lose by
trying to straighten it?
On 03/01/2016 08:53 AM, jandrews_nyc wrote:
Hi
Looking for some advice here as what I got at a local bike shop
yesterday seemed suspect.
A few days ago I noticed I had a broken spoke on my rear wheel.
I took the bike in and as it turned out, the shop replaced 5 rear
spokes. The mechanic seemed to think that the chain must've over
shifted pretty hard into the wheel. I don't remember that happening
but I did wreck slightly a few weeks ago as the snow started falling
and the bike went down.
So he fixed the wheel and trued it up.
I asked him about the derailleur hanger tab and he agreed that it's bent.
I told him that it's been bent before about 5 years ago and I had
another mechanic professionally bend it back with the correct tool.
At that point he didn't want to attempt to bend it back since it's
been done once before and the steel could break.
The rear derailleur will not shift well into either the largest cog or
the smallest cog because of the bend.
When shifted into the smallest cog, the chain rubs on the hanger due
to the inward bend and when shifting into the largest cog, the chain
skates due to the angle of the pulley. So we trimmed out both of
those cogs and now my 8 speed cassette is effectively a 6 speed. This
is fine for the moment as I'm winter commuting but want to get it all
sorted before spring.
What do you all think about the hanger? Will it break? Shouldn't I
just try it? Or is it better to take to a frame shop and have a new
dropout put in? I really don't want to do that and don't even know if
I could get a new one from Riv.
Thanks in advance for your advice.
Jason
Photo below:
<https://lh3.googleusercontent.com/-XUgOtyYUy6I/VtWej-5yiRI/AAAAAAAAAlA/La6G6kXnhoE/s1600/der.jpg>
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