| Re: Old Bike On Ebay With Seatstay Shiftlevers?
In article <27bc6c79.0311051459.73ad7784@posting.google.com >,
bicycle@charter.net (R.White) writes:
> I'm assuming these early derailleurs compensated for chain length
> the way derailleurs of today do. Moving the axle in the dropout
> seems like an answer to a problem that was already taken care of, no?
From the description provided by Zoot (about the bike with the
seatstay-mounted levers), it sounds to me like the cogset moves
inward-&-outward while the chain remains in the same chainline.
But I'm just guessing, and surmising it was an overly-engineered
attempt to avoid the extreme chainlines inherent with derailers.
Especially if the bike has multiple chainwheels and/or widely-
spaced cogwheels.
cheers,
Tom
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