Re: [CR]Derailleur Jockey Wheels Teeth or Toothless?

Example: Framebuilders:Norman Taylor

Date: Sat, 29 Oct 2005 08:59:31 -0700
From: "Steven Willis" <>
Subject: Re: [CR]Derailleur Jockey Wheels Teeth or Toothless?
To: "scott davis" <>, <>
References: <>

I always figured it has more to do with fashion or style and it is cheaper to make them the same. Steven Steven Willis 1778 East Second Street Scotch Plains NJ 07076 908-322-3330

----- Original Message -----
From: "scott davis"
Sent: Friday, October 28, 2005 4:19 PM
Subject: [CR]Derailleur Jockey Wheels Teeth or Toothless?

> Hey Grouppo, I'd appreciate comments on a jockey wheel observation. I was
> rummaging through my stash of old Huret derailleurs and noticed various
> combinations of rear derailleur jockey wheels. The earliest jockey wheels
> were toothless. Later the top wheel sprouted teeth while the bottom wheel
> remained toothless. Finally, (as w/ contemporary derailleurs), both
> wheels show teeth! Is this evolotion? What are the advantages to having
> only the top wheel con dente? Do toothless jockey wheels transmit less
> chain friction? Scott Davis St. Paul, MN USA
> ---------------------------------
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