Roger Longbottom
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W
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The answer to all the above is no. Just do it right or don't bother.1. Can I start the 9 speed cassette at the second cog (the 12) or does the smallest cog need to used to hold it on properly? No
2. Obviously I will replace the chain but should it be an 8 speed chain or a 9 speed chain as that is effectively what the cassette is?
3. How many extra links would I need to have in the new chain?
4. Will the finished article be a bu--er to index?
5. Will it even change up and down correctly?
6. If using the small front will I end up with a "slack chain"?
7. Will my rear mech (pic below) be able to cope with the extra distance between 12-30, it certainly doesn't look the longest cage I have seen.
8. Am I nuts for even contemplating this and should I just buy a replacement 8 speed 13-26 and 8 speed chain?
Thanks in advance.
the problem of if the rear mech could handle it
how many extra links to put in the chain.
Your large and middle chainring ist kaput.In my defence David I had just come back yesterday from 40 miles of very dirty / muddy country roads which all included two floods.
You may be more pleased with it today, post clean.
View attachment 499966
I can see from the shape of the teeth. They've become thin (in profile, not thickness) and shark-fin like i.e. looks like a wave that's cresting. A good tooth is perfectly symmetrical.Still works perfectly Yellow Saddle, what are the give aways that they are kaput.
I keep my best bike a lot cleaner by the way.
View attachment 499989
Nah - that's not the reason. It's that they are wimps is the reasonI suppose that is one of the reasons so many people sit on a Turbo during the winter