Join Date: Sep 2005
Location: Toronto, Ontario
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Rear Derailleur Tension Estimates
I was hoping someone could help me out. I need a quantitative estimate of the maximum tension that the rear derailleur cable on a typical bike would be under. If anyone has ever measured this, or knows where I could find this number, I would be very appreciative. I used the word "typical" on purpose. I need only a very rough estimate, so for example, this could be for a recent ShimanioTiagra 8spd. Any numbers would be very helpful.
I am also interested in the total cable travel. i.e. Between shifting from gears 1-8 (or 9 or 10) how much cable is wound up in the shifter? 5 inches? 10 inches?
Your help is very much appreciated