Rapid fire shifters.

[col]

My left hand one which changes the rear cogs sometimes doesnt change,it has a feel like there is nothing there,as if there is no cable attached and its just the lever moving for a few tries then something catches and it works for a while again.Iv checked to see if there is anything loose but all seems fine,the lever has no play either,any ideas anyone? Its not an expensive set and iv had them a few years, is this the slippery slope and can i expect to need to replace them soon,or is there something im missing?

 

[numbnuts]

I had that once I sprayed it in WD40 works all right now

 

[col]

I had that once I sprayed it in WD40 works all right now

I hadnt thought of that with it being so smooth still? Cheers ill give it a go.

 

[bonj2]

left hand one should be the front, not rear.

 

[spandex]

It sounds like the cable is fraying inside.

 

[bonj2]

or kinked

 

[spandex]

Na Kinked will not do what he is saying it will just slow it down.

 

[jpembroke]

ratchets do wear out on shifters resulting in 'dead' shifts. I tend to replace them when that happens although I do have some ancient STis that did this, then stopped for some reason and have been fine on my 'cross bike ever since. Maybe something fell back in to place.

 

[jayce]

same as ben says need to change the shifters if the left is for the rear . take the cable out of its sleeve and check the inner is ok then some light oil then give it a whirl

 

[col]

left hand one should be the front, not rear.

I replaced the twist grip shifters when i got the bike,and that was the way they were,it hadnt crossed my mind and hasnt been a problem.