Re: esoteric front derailleurs....

Donald Gillies writes:

I remember the SunTour ones were not as good as a normal action.
You needed more than a spring to get the chain from 36 to 52
sometimes.

I personally liked my SunTour SL front derailleur a great deal.
"Push either shift lever forward to go faster" is the most
intuitive shifting you can imagine. The SL was a high quality
low-cost derailleur with lightweight aluminum cages.

They were all bottom-pull derailleurs, however. Reverse Action !=
Bottom Pull, the two features are independent.

And, there were regular-action derailleurs whose springs wore out and
which wouldn't pull the chain down onto the small chainwheel, too.

I don't believe it. Either the spring broke or it yielded the first
time it was shifted to either extreme. Spring steel does not soften
or wear. Of course if you heated the spring while it was in its most
stressed condition you might get it to change, but then you would
smell the burning lubricant. I suspect the hinge got full of dirt and
had high friction.

Jobst Brandt
.

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