Occasional chain suck - new components

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PJ520
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Joined: 23 Mar 2008, 3:49pm
Location: Seattle WA USA

Re: Occasional chain suck - new components

Postby PJ520 » 8 Dec 2018, 7:04pm

Brucey wrote:is it my imagination or is the FD well above the big ring? If so, that won't help downshifts.
+1 a mate of mine had a new bike from Halfords and the FD was so high it wouldn't shift onto the small ring at all. It was about 10mm rather than the 2-3 recommended. Moving it down fixed it.
You only live once, which is enough if you do it right. - Mae West

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531colin
Posts: 12208
Joined: 4 Dec 2009, 6:56pm
Location: North Yorkshire

Re: Occasional chain suck - new components

Postby 531colin » 8 Dec 2018, 7:22pm

PJ520 wrote:
531colin wrote: (The bit thats supposed to fit into a wooden handle).
Is known as the tang.

Of course it is. Even over the pond? I got "rat tail" in my mind, and couldn't get past it.

PJ520
Posts: 865
Joined: 23 Mar 2008, 3:49pm
Location: Seattle WA USA

Re: Occasional chain suck - new components

Postby PJ520 » 8 Dec 2018, 7:49pm

531colin wrote:Even over the pond?
Indeed, they use quite a few English word over here.
You only live once, which is enough if you do it right. - Mae West

Brucey
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Joined: 4 Jan 2012, 6:25pm

Re: Occasional chain suck - new components

Postby Brucey » 8 Dec 2018, 9:52pm

fausto99 wrote:
Brucey wrote:I also note that there is particle of aluminium on one of the teeth in your pictures, which suggest that 'something is happening' to the chainring teeth as they run-in.
Sorry I can't see it...


first photo, middle ring, third tooth from the left...?

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

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fausto99
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Re: Occasional chain suck - new components

Postby fausto99 » 9 Dec 2018, 11:53am

Brucey wrote:
fausto99 wrote:
Brucey wrote:I also note that there is particle of aluminium on one of the teeth in your pictures, which suggest that 'something is happening' to the chainring teeth as they run-in.
Sorry I can't see it...

first photo, middle ring, third tooth from the left...?
cheers

No - must be a trick of the light. I've since taken both middle and big ring off, had a good look and found no swarf of any kind. Nevertheless, while they were off, I filed anything that was slightly rough to my bare fingertip. One thing I do think is significant. The finish on the middle ring is not smooth. See below. I don't know what to call it but it's a bit like a rough sand casting and the side faces of the teeth have not been lathe machined on either side. Could this be grabbing a little, intermittently?

Image

MikeDee
Posts: 505
Joined: 11 Dec 2014, 8:36pm

Re: Occasional chain suck - new components

Postby MikeDee » 10 Dec 2018, 5:05pm

You might want to give a read on this site http://www.fagan.co.za/Bikes/Csuck/