Bike Forums - View Single Post - What was the point of skip tooth chain rings?

07-22-15 | 04:39 PM

#15

FBinNY

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From: New Rochelle, NY

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Quote:

Originally Posted by JonathanGennick

Were there skip tooth cogs to go along with those skip tooth rings?

Jonathan,

I'm surprised at you.

How else would it work, if BOTH sprockets didn't match the chain?

BTW- here's a link to a nice article on the subject, with photos showing the chain and sprockets. While there, take a look at the block chain pictured. Note the large gap for teeth compared to the block, and the uneven pin spacing. Later, when the block was replaced with a pair of rollers, the uneven spacing had to be maintained for sprocket compatibility.

So if you look at the blocks you can imagine them replaced with closely spaced rollers, and the tooth staying in the larger gap between the pairs. Respacing to uniformly spaced 1/2" pitch came later.

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Last edited by FBinNY; 07-22-15 at 05:15 PM.

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