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.

http://www.thethirdhand.com/index.cgi?c=Bottom%20Bracket&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.

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
http://www.vecchios.com
"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:

http://www.thethirdhand.com/index.cgi?c=Bottom%20Bracket&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 http://bike.terrymorse.com/

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 http://bike.terrymorse.com/

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 http://bike.terrymorse.com/

Quoted message said:

Quoted message said:

http://www.thethirdhand.com/index.cgi?c=Bottom%20Bracket&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 http://bike.terrymorse.com/