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-   -   Fractured front cog? (http://www.cyclebanter.com/showthread.php?t=7542)

Daniel Kelly \(AKA Jack\) July 5th 04 07:10 PM

Fractured front cog?
 
Sorry guys, it looks like my web host has gone offline.

Here are some photos that work:

Try these links:

http://www.ucl.ac.uk/~ucgadak/fracture1.jpg
http://www.ucl.ac.uk/~ucgadak/fracture2.jpg
http://www.ucl.ac.uk/~ucgadak/fracture3.jpg

Thanks!
Jack




"Daniel Kelly (AKA Jack)" wrote in message
...
Dear Bikers,

I fear my bike has a fracture in its front cog. I first noticed something
was wrong when I heard the front cog hitting against the front derailleur
once every revolution of the pedals. It turned out the front cog was
actually bent and so "wobbled" as it rotated, relative to the front
derailleur. Closer inspection showed that the front cog was a little

loose
and could be jiggled a little. The join between the front cog and the

right
pedal was clearly loose.

I took the right pedal off and found a little crack in the front cog.

Some
photos are he


http://www.xlk.org.uk/forum/modules....view_album.php

Is this a fracture? If so, how dangerous is it? Can I ride my bike with
this fracture? Do I need a new front cog & right pedal?

Thanks,
Jack


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ZeeExSixAre July 5th 04 07:29 PM

Fractured front cog?
 
I fear my bike has a fracture in its front cog. I first noticed


Sure has. Upgrade your crankset. Stay away from Suntour stuff... they're
cheap stuff made for people who don't really ride.

At the very least, stick with Deore-level (FC-something22) cranks or higher.
They should be no more than $50-60 at your local bike shop.

Don't get anything with riveted chainrings... that's an indication of
inferior quality.

--
Phil, Squid-in-Training




S o r n i July 5th 04 07:38 PM

Fractured front cog?
 
Daniel Kelly (AKA Jack) wrote:
Sorry guys, it looks like my web host has gone offline.

Here are some photos that work:

Try these links:

http://www.ucl.ac.uk/~ucgadak/fracture1.jpg
http://www.ucl.ac.uk/~ucgadak/fracture2.jpg
http://www.ucl.ac.uk/~ucgadak/fracture3.jpg



While it may last a long time -- especially if you don't use that granny
much -- easiest thing to do is buy a new small chainring and replace the
cracked one.

Bill "how'd you do that, anyway?!?" S.



ZeeExSixAre July 5th 04 08:42 PM

Fractured front cog?
 
granny much -- easiest thing to do is buy a new small chainring and
replace the cracked one.


Not likely - the whole spider is riveted together to the chainrings.

--
Phil, Squid-in-Training





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