New front derailleur very stiff

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TB2411
Posts: 1
Joined: 4 Aug 2020, 7:50pm

New front derailleur very stiff

Post by TB2411 »

Hi
I bought a Shimano tourney front mech online to replace the damaged one on my daughter's bike. When it arrived I tried to move/pivot it by hand. It wouldn't budge, so I assumed it was faulty and bought another! This time shimano nexave, same problem, so I assume it's something I don't know rather than 2 faulty derailleurs.

I've only replaced a front mech once before, this was a shimano claris on my own bike a few years ago and didn't have any trouble. I remember being able to move it by hand before installing it.

Can anyone help please? What am I missing?

TIA
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fausto99
Posts: 953
Joined: 19 Sep 2011, 10:06am
Location: NW Kent

Re: New front derailleur very stiff

Post by fausto99 »

They are very stiff and difficult to move by hand unless you clamp one end in a vice IME
peetee
Posts: 4326
Joined: 4 May 2010, 10:20pm
Location: Upon a lumpy, scarred granite massif.

Re: New front derailleur very stiff

Post by peetee »

Lots of Shimano mechs are supplied with a plastic choc that needs removing from the parallelogram.
The older I get the more I’m inclined to act my shoe size, not my age.
freeflow
Posts: 1645
Joined: 29 Aug 2011, 1:54pm

Re: New front derailleur very stiff

Post by freeflow »

you mean chock.
Brucey
Posts: 44672
Joined: 4 Jan 2012, 6:25pm

Re: New front derailleur very stiff

Post by Brucey »

the 'chock' is usually like a little plastic lollypop eg

Image

Image

it is meant to hold the FD in about the same position as it would be on the big ring, and is there to help with setup.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
Eyebrox
Posts: 583
Joined: 5 Aug 2015, 8:56pm
Location: Ayrshire

Re: New front derailleur very stiff

Post by Eyebrox »

These lower end Shimano derailleurs move freely once they're attached. Incredibly difficult to yank apart using both hands when unattached.
peetee
Posts: 4326
Joined: 4 May 2010, 10:20pm
Location: Upon a lumpy, scarred granite massif.

Re: New front derailleur very stiff

Post by peetee »

freeflow wrote:you mean chock.


I do. Damn spell chocker. :wink:
The older I get the more I’m inclined to act my shoe size, not my age.
freeflow
Posts: 1645
Joined: 29 Aug 2011, 1:54pm

Re: New front derailleur very stiff

Post by freeflow »

That should be speil chicken :mrgreen:
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