Crank Arm trouble

Brendo said:

Went back to the LBS, he has cleaned out the bottom bracket, re-sealed
it and placed the arm back on, with a new little screw in cap thing (I
have no idea what it is called). He did say he shouldhave checked it,
but also added if there is any more trouble with it he'll replace no
questions asked. And he threw in a bell to seal it.

So now we've had three rides, 32km, 30km and 19km, and bum is feeling a
little better. We are still driving to the freeway bike path rather than
riding on roads, because it still takes about 3 pedal revolutions before
I can clip in properly, and I'd rather not be crossing a road while trying.

Given we are getting home around 5:40pm from work, would small 30-40min
rides during the week be worthwhile, or just get an hour in on an early
day, and then two larger rides on weekends?

yes, they will be worthwhile. Lots of smaller rides are better than
one or two big ones.

Quoted message said:

Finally, the chain rubs on the front derailuer, is this normal? It's not
across the whole cassette, just the few cogs on each end.

Yes. Your front shifters will (assuming tiagra or better) have a "half
shift" that you can use to trim them.

Quoted message said:

Cheers

On 2006-03-29, Bleve (aka Bruce)
was almost, but not quite, entirely unlike tea:

Quoted message said:

Brendo said:

Finally, the chain rubs on the front derailuer, is this normal? It's not
across the whole cassette, just the few cogs on each end.

Yes. Your front shifters will (assuming tiagra or better) have a "half

And sora too.

Quoted message said:

shift" that you can use to trim them.

Also, don't have the chain crossing from small front ring to the small
back cogs, and big front ring to big cogs, because you stress the
chain, cause chain rub, and leave the deraileur in places it was not
designed to go.

If the chain rub is happening with a straightish chain path (big to
small or small to big), then the limit screws or cable length
(indexing) on the front could be off.

How on earth did my cooking tonight not end up setting of the smoke
alarm?

--
TimC
If I sit here and stare at nothing long enough, people might think
I'm an engineer working on something.
-- S.R. McElroy

Quoted message said:

Also, don't have the chain crossing from small front ring to the small
back cogs, and big front ring to big cogs, because you stress the
chain, cause chain rub, and leave the deraileur in places it was not
designed to go.

If the chain rub is happening with a straightish chain path (big to
small or small to big), then the limit screws or cable length
(indexing) on the front could be off.

Checked it over, it's okay on the middle at both ends, it's just from
small to small and big to big. I'll try to limit use of this gearing.

Quoted message said:

How on earth did my cooking tonight not end up setting of the smoke
alarm?

I give up, how?

Quoted message said:

Quoted message said:

Finally, the chain rubs on the front derailuer, is this normal? It's not
across the whole cassette, just the few cogs on each end.

Yes. Your front shifters will (assuming tiagra or better) have a "half
shift" that you can use to trim them.

Forgive the ignorance, but what do you mean by trim them?

TimC said:

How on earth did my cooking tonight not end up setting of the smoke
alarm?

boiled eggs?

--
Peter McCallum
Mackay Qld AUSTRALIA

In aus.bicycle on Wed, 29 Mar 2006 20:10:22 +0800

Brendo said:

So now we've had three rides, 32km, 30km and 19km, and bum is feeling a
little better. We are still driving to the freeway bike path rather than
riding on roads, because it still takes about 3 pedal revolutions before
I can clip in properly, and I'd rather not be crossing a road while trying.

Consider fiddling with the clip tension a bit, and moving the cleats a
fraction sideways in the shoe.

I found that those adjustments made clipping in easier.

Quoted message said:

Given we are getting home around 5:40pm from work, would small 30-40min
rides during the week be worthwhile, or just get an hour in on an early
day, and then two larger rides on weekends?

The small ones are working for me 🙂 I started just doing bike paths
on the flat, I'm now doing more hills.

Zebee

In aus.bicycle on Wed, 29 Mar 2006 22:22:46 +0800

Brendo said:

Checked it over, it's okay on the middle at both ends, it's just from
small to small and big to big. I'll try to limit use of this gearing.

Have a look at http://www.panix.com/~jbarrm/pcgi-bin/c41strt.cgi and
http://sheldonbrown.com/gears/index.html

Both will give you an idea of how to avoid the big/big small/small
combos.

The first one even gives you a shifting pattern to show you which
gears are next to each other and the percentages between them.

Yes, when changing from one front ring to another you have to adjust
the back as well, but it is pretty quick to do with practice.

Zebee

Brendo said:

Quoted message said:

Quoted message said:

Finally, the chain rubs on the front derailuer, is this normal? It's not
across the whole cassette, just the few cogs on each end.

Yes. Your front shifters will (assuming tiagra or better) have a "half
shift" that you can use to trim them.

Forgive the ignorance, but what do you mean by trim them?

You can do a "half shift" - it's a feel thing, but most Shimano STI
levers (chainrings, not cassette side) do it. As Tim says, it's best
to avoid those combinations though.

Brendo said:

Quoted message said:

Yes. Your front shifters will (assuming tiagra or better) have a "half
shift" that you can use to trim them.

Forgive the ignorance, but what do you mean by trim them?

Small movement of the derailleur to prevent the rubbing. In the old days of
non-indexed shifters this was avery normal part of using your gears. Now
with indexing most people don't know about it, but as Bleve said, with some
road shifters (don't think it is on MTB shifters) you can get a small "half
click" to move the cage a little, but not change the gear.
--
Cheers
Peter

~~~ ~ _@
~~ ~ _- \,
~~ (*)/ (*)

TimC said:

How on earth did my cooking tonight not end up
setting of the smoke alarm?

You're clearly not trying hard enough 🙂

Cheers,

Suzy (excited at the prospect of bike shopping tonight)