Tiagra 9spd triple RD capacity
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Does anybody know what size cassette I can stick on the back of a tiagra 9 speed triple? The largest cog now is a 26 and my wife is displeased with the effort it takes to get up a hill... and we have plenty around my house.
I've seen 12-27 cassettes but I don't know that 1 tooth is worth the...