Chainline/FD Problem

Terry Morse said:

Quoted message said:

The elegant solution would be to shift the BB a few mm to
the right, but doing that seems problematic.

thethirdhand.comindex.cgiOpen ↗
=71059306303 Freewheel/BB Cup Spacer 1.0mm /Each
Freewheel/BB Cup Spacer 1.5mm /Each Freewheel/BB Cup Spacer
2.0mm /Each

It works fine. I do it all the time.

tmorse-<< I can't adjust the derailleur any farther in,
because it is hitting the seat tube. >><BR><BR>

Grind a bit of front der away where it hits the ST and
perhaps a small divot in the ST where the front der hits.

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St.
Boulder, CO, 80302
(303)440-3535 vecchios.comvecchios.comOpen ↗ "Ruote convenzionali
costruite eccezionalmente bene"

Terry Morse said:

The elegant solution would be to shift the BB a few mm to
the right, but doing that seems problematic. It's an
english threaded BB. Any ideas?

A spacer under the right side cup will do that, assuming
you can still screw the left side cup in enough to hold the
BB, and that the left crank doesn't hit the chainstay
(probably rare).

Did you measure the chainline before and after? How does it
compare to whatever the Shimano spec is for a road triple
chainline?

gwhite said:

thethirdhand.comindex.cgiOpen ↗
id=71059306303 Freewheel/BB Cup Spacer 1.0mm /Each
Freewheel/BB Cup Spacer 1.5mm /Each Freewheel/BB Cup
Spacer 2.0mm /Each

It works fine. I do it all the time.

Thanks, just what I was looking for. I place an order.
--
terry morse Palo Alto, CA bike.terrymorse.combike.terrymorse.comOpen ↗

Qui si parla Campagnolo said:

Grind a bit of front der away where it hits the ST and
perhaps a small divot in the ST where the front der hits.

That was what I tried at first, but it still needs a little
more space, and I'm relucatant to grand any more away. I
ordered a BB spacer from Loose Screws.
--
terry morse Palo Alto, CA bike.terrymorse.combike.terrymorse.comOpen ↗

Benjamin Weiner said:

A spacer under the right side cup will do that, assuming
you can still screw the left side cup in enough to hold
the BB, and that the left crank doesn't hit the chainstay
(probably rare).

That's what I'll do. There is 9 mm of clearance between the
left crank and chainstay, and I need only about 1.5 mm.

Quoted message said:

Did you measure the chainline before and after? How does
it compare to whatever the Shimano spec is for a road
triple chainline?

No, I didn't measure. I figured the 118 mm printed on the
new BB was adequate.
--
terry morse Palo Alto, CA bike.terrymorse.combike.terrymorse.comOpen ↗

Quoted message said:

Quoted message said:

thethirdhand.comindex.cgiOpen ↗
t&id=71059306303 Freewheel/BB Cup Spacer 1.0mm /Each
Freewheel/BB Cup Spacer 1.5mm /Each Freewheel/BB Cup
Spacer 2.0mm /Each

It works fine. I do it all the time.

Thanks, just what I was looking for. I place an order.

Terry: Many local bike shops probably would have had those
in stock, they're hardly unique. I'm sure we've got them,
for what it's worth (but that doesn't do you much good right
now, since we're closed Sundays in Redwood City, and I'm not
sure if we've got them in our Los Altos store... they're too
new to have ever had to deal with spacing out a freewheel).

Obviously, before installing BB spacers, make sure that's
not going to bring the left side in too close to the frame.

--Mike-- Chain Reaction Bicycles
www.ChainReactionBicycles.com

Mike Jacoubowsky wrote (regarding BB spacers):

Quoted message said:

Terry: Many local bike shops probably would have had those
in stock, they're hardly unique. I'm sure we've got them,
for what it's worth (but that doesn't do you much good
right now, since we're closed Sundays in Redwood City, and
I'm not sure if we've got them in our Los Altos store...
they're too new to have ever had to deal with spacing out
a freewheel).

Thanks for the offer, Mike. Since I already placed the
order, I'll just wait for the delivery. Although it's only
an 80-cent part, In can wait. I don't use the small ring
around here. I'll save that for Sonora Pass and the like.

Quoted message said:

Obviously, before installing BB spacers, make sure
that's not going to bring the left side in too close to
the frame.

Yep, that part I already checked. I have 9 mm of clearance
on the left crank.

Here's another little incident I had today. Do you know the
little pin that keeps a dropped chain from wedging itself
between the big ring and the crank? Well, the FSA crank has
one, but it doesn't stick out far enough to prevent the
chain from doing just that. It happened to me just at the
top of the hill on Sand Hill Road today, and it was quite
the challenge to get it out of there. Just thought you might
like to know that, what with you using an FSA crankset now.
--
terry morse Palo Alto, CA bike.terrymorse.combike.terrymorse.comOpen ↗