Bicycle Mechanics - Which rear mech
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04-30-08, 12:53 PM
How do I know which rear mech to use. The Shimano SS and GS seem to have similar spec re max/min sprocket size?
it depends on the overall difference of the teeth and that is calculated as (large rear cog-small rear cog)+(large front chainwheel-smallest front chainwheel) = overall teeth difference
then you choose the one with an appropriate max range
SS is generally for doubles (road)
GS is generally for triples (road)
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