Bike Forums - View Single Post - Ever modified a crank to add a granny?

08-25-19, 01:54 PM

#24

jonwvara

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Quote:

Originally Posted by JohnDThompson

As others have noted above, a triplizer chainring is a quick, easy, and fully reversible means of adding a "granny" gear to a vintage crank. Red Clover makes a couple versions, the 144mm BCD ring @andy k shows above, and a 122mm BCD version for the Stronglight 93 crank:

True, I do make the triplizers mentioned above. I also make a 37-tooth 122 BCD ring, which is the smallest tooth count that really works with 122 BCD. They're nice--I use them myself. Go ahead and buy one, somebody--brighten an old man's day.

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