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Author Topic: Gear changing woe  (Read 3000 times)

darkpoint

Gear changing woe
« on: 03 May, 2008, 03:51:15 pm »
So I was heading down to Herne Hill, and decided to change from 48/18 to 48/16,  only it wont shift.

During this I discovered that my Chain Whip doesn't fit, as I 1/8 componants on my track bike.
Apart from drowning it in plus gas, any ideas?
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Just someone's butler

hubner

Re: Gear changing woe
« Reply #1 on: 03 May, 2008, 04:38:35 pm »
Wrap a bit of chain around the sprocket and put in a vice, turn wheel.

Or if you haven't got a vice:
http://204.73.203.34/fisso/eng/schpignone.htm
make sure you set it in reverse for removing though.
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border-rider

Re: Gear changing woe
« Reply #2 on: 03 May, 2008, 06:28:56 pm »
Replace the chain on the chainwhip with a length of 1/8
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rogerzilla

  • When n+1 gets out of hand
Re: Gear changing woe
« Reply #3 on: 04 May, 2008, 08:09:45 am »
You need to make a bigger chainwhip (just slightly larger than wheel radius is optimal).



And, before anyone else says it,

Quote
The horror.  The horror.
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Hard work sometimes pays off in the end, but laziness ALWAYS pays off NOW.

darkpoint

Re: Gear changing woe
« Reply #4 on: 04 May, 2008, 10:41:32 am »
Thanks for your help,  I have now mannaged to gt it shifted.. 

rogerzilla,  that is a very scary picture,  I hope that you didn;t just take it for this tread, as that wouldbe very scary.

fixer, great website, and that trick worked, once I looked closely at the pictures and worked out how I was supposed to have enough slack chain.

But clearly i should get myself some spair chain for my chainwhip, and some sort of extender.
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Zipperhead

  • The cyclist formerly known as Big Helga
Re: Gear changing woe
« Reply #5 on: 04 May, 2008, 11:45:25 am »
When I couldn't shift my sprocket, I used a very small blowtorch (pencil size), to heat on the join between the sprocket & hub, put some oil all the way around and left it horizontal overnight.

The next morning, when I wiped away the oil with a bit of rag, that was enough to also unscrew the sprocket.

Mind you, a stainless steel hub & sprocket minimised my chances of damaging things.
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Greenbank

Re: Gear changing woe
« Reply #6 on: 04 May, 2008, 11:55:56 am »
Miche Sprockets.

A lockring spanner is all you'll need (unless that gets wedged on, then see above).
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rogerzilla

  • When n+1 gets out of hand
Re: Gear changing woe
« Reply #7 on: 04 May, 2008, 04:24:53 pm »
Quote from: darkpoint on 04 May, 2008, 10:41:32 am
I should get myself some spair chain for my chainwhip, and some sort of extender.
It's a piece of steel bar from B&Q, drilled in the appropriate places using another chainwhip as a template, with pieces of 1/8" chain hammered into place.  The "handle" is some hideous red bar tape I had lying about.
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Hard work sometimes pays off in the end, but laziness ALWAYS pays off NOW.

Treewheeler

Re: Gear changing woe
« Reply #8 on: 05 May, 2008, 09:07:09 pm »
Quote from: rogerzilla on 04 May, 2008, 08:09:45 am
You need to make a bigger chainwhip (just slightly larger than wheel radius is optimal).



And, before anyone else says it,

Quote
The horror.  The horror.

WHAT IS GROWING IN HIS HEAD!!!
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teethgrinder

Re: Gear changing woe
« Reply #9 on: 08 May, 2008, 09:23:06 pm »
Quote from: Two Wheel Tuggo on 05 May, 2008, 09:07:09 pm
Quote from: rogerzilla on 04 May, 2008, 08:09:45 am
You need to make a bigger chainwhip (just slightly larger than wheel radius is optimal).



And, before anyone else says it,

Quote
The horror.  The horror.

WHAT IS GROWING IN HIS HEAD!!!

Never mind that.
I was wondering why he keeps a chain whip in his kitchen drawer.
Is it also used as a tin opener?
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