Help re gearchange - Shimano 105

"AC" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Hi,

Can anyone help;

Problem: Shifting down (ie bigger cogs on backwheel) sometimes takes

more

Quoted message said:

than 1 flick of the lever - chain is moved out of alignment but not enough
to move cogs. Usually have to give a small second go, but if I move the
lever too much, it ends up causing a move up 2 gogs. Problem is
intermittent. No probs changing down

Only started a couple of weeks ago. Before that, all was well

I started using Halfords General Purpose Cycle Maintenance Spray to
lubricate chain. This may be coincidence. Bike is new (to me) but has done
about 5.5k miles in

Any ideas? Its a real pain as everything was fine for the first month of
ownership

--
Cheers

AC

First thing I'd try would be to have a fiddle with the adjusting barrel on
your derailleur. Maybe the tension on your gear cable is too tight. Turn the
barrel clockwise 1/4 turn at a time, testing the shifting after each 1/4,
and see if this helps.

tony R.

tony R said:

First thing I'd try would be to have a fiddle with the adjusting
barrel on your derailleur. Maybe the tension on your gear cable is
too tight. Turn the barrel clockwise 1/4 turn at a time, testing the
shifting after each 1/4, and see if this helps.

Anti-clockwise, surely? OP is having probs shifting down. Probably cable
stretch.

"tony R" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

"AC" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Hi,

Can anyone help;

Problem: Shifting down (ie bigger cogs on backwheel) sometimes takes

more

Quoted message said:

than 1 flick of the lever - chain is moved out of alignment but not

enough

Quoted message said:

Quoted message said:

to move cogs. Usually have to give a small second go, but if I move the
lever too much, it ends up causing a move up 2 gogs. Problem is
intermittent. No probs changing down

Only started a couple of weeks ago. Before that, all was well

I started using Halfords General Purpose Cycle Maintenance Spray to
lubricate chain. This may be coincidence. Bike is new (to me) but has

done

Quoted message said:

Quoted message said:

about 5.5k miles in

Any ideas? Its a real pain as everything was fine for the first month of
ownership

--
Cheers

AC

First thing I'd try would be to have a fiddle with the adjusting barrel on
your derailleur. Maybe the tension on your gear cable is too tight. Turn

the

Quoted message said:

barrel clockwise 1/4 turn at a time, testing the shifting after each 1/4,
and see if this helps.

Having just reread this I think I've got it [censored] about face. You mean the
problem occurs when moving from smaller to larger sprockets don't you? In
this case the tension might be too loose and you need to do the adjusting
anti-clockwise........I think.
Ooops,

tony R.

"Simonb" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

tony R said:

First thing I'd try would be to have a fiddle with the adjusting
barrel on your derailleur. Maybe the tension on your gear cable is
too tight. Turn the barrel clockwise 1/4 turn at a time, testing the
shifting after each 1/4, and see if this helps.

Anti-clockwise, surely? OP is having probs shifting down. Probably cable
stretch.

You beat me to it...

tony R.