front derailleur adapters?

Never seen such a thing. Try finding an old SunTour triple/mtb front
der. like XC or MounTech. If I remember, those had a very large swing
to them, and just may go out far enough. Good luck.
Jim

Brian S said:

Does anyone know if there's an adapter of sorts that can move the front
derailleur away from the frame more?

I have a hacked commuter and the BB is very long because of extreemly
wide rear stays. Because of this I haven't been able to find a front
derailleur that can move the chain over enough to engage the outer ring.

Short of welding things together, does anyone know of a fix? I've been
running it without one for a while and the chain line stinks, so the
chain jumps and drops a lot. Given this problem, running without one
isn't really something I want to do.

tkx

Front derailers are pretty cheap. Perhaps you can buy one that's made
for bigger tubing and shim it on one side only to make it offset. I've
used small sections of PVC tube to make clamp shims.

Peter Cole said:

Brian S said:

Does anyone know if there's an adapter of sorts that can move the
front derailleur away from the frame more?

I have a hacked commuter and the BB is very long because of extreemly
wide rear stays. Because of this I haven't been able to find a front
derailleur that can move the chain over enough to engage the outer ring.

Short of welding things together, does anyone know of a fix? I've been
running it without one for a while and the chain line stinks, so the
chain jumps and drops a lot. Given this problem, running without one
isn't really something I want to do.

tkx

Front derailers are pretty cheap. Perhaps you can buy one that's made
for bigger tubing and shim it on one side only to make it offset. I've
used small sections of PVC tube to make clamp shims.

That's an idea that's crossed my mind. Might end up doing something like
that in the end.

It's too bad, considering that I have a large pile of parts (saved from
the garbage) that I've saved from the garbage, yet I'm stumped on this one.

Brian S said:

Peter Cole said:

Brian S said:

Does anyone know if there's an adapter of sorts that can move the
front derailleur away from the frame more?

I have a hacked commuter and the BB is very long because of extreemly
wide rear stays. Because of this I haven't been able to find a front
derailleur that can move the chain over enough to engage the outer ring.

Short of welding things together, does anyone know of a fix? I've
been running it without one for a while and the chain line stinks, so
the chain jumps and drops a lot. Given this problem, running without
one isn't really something I want to do.

tkx

Front derailers are pretty cheap. Perhaps you can buy one that's made
for bigger tubing and shim it on one side only to make it offset. I've
used small sections of PVC tube to make clamp shims.

That's an idea that's crossed my mind. Might end up doing something like
that in the end.

It's too bad, considering that I have a large pile of parts (saved from
the garbage) that I've saved from the garbage, yet I'm stumped on this one.

I know that Santana, who uses 160mm rear spacing on their tandems and
thus puts long BB spindles to keep a decent chainline, had some kind of
kludge to put the front derailleur further out so it would shift ok, but
I never really knew what they did to achieve this. I think going with
another derailleur and the shim is probably the best way to go.

Baird

Brian S said:

Does anyone know if there's an adapter of sorts that can move the front
derailleur away from the frame more?

I have a hacked commuter and the BB is very long because of extreemly
wide rear stays. Because of this I haven't been able to find a front
derailleur that can move the chain over enough to engage the outer ring.

Short of welding things together, does anyone know of a fix? I've been
running it without one for a while and the chain line stinks, so the
chain jumps and drops a lot. Given this problem, running without one
isn't really something I want to do.

No I do not.
But some changers, especially less expensive models, have
more 'throw'. Might be interesting to try a couple ( no
cable needed, just bolt in place with outer limit screw
slacked and shift out with fingers) at your LBS. Start in
the under-$20 bin.

If that doesn't do it, a front changer braze mount could be
easily brazed with a spacer (steel scrap) between itself and
the seat tube.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

On Wed, 18 Jan 2006 23:12:54 -0500, Brian S <[email hidden]>

Quoted message said:

Does anyone know if there's an adapter of sorts that can move the front
derailleur away from the frame more?

A Santana tandem dealer has an adapter.

Using a larger clamp front derailleur and installing it eccentricly by
shimming on the drive side only will move the derailleur out.

Replacing the bb is likely the best solution from a function and cost
basis. A square taper bb is a $20 thing.