Shimano LX Right hand shift problem

[Bat-ass]

I have Shimano LX 580 shifters, about 3 months old. the rear derailleur has had a suspect shift since new.

The shifts from smallest to second largest have the same "thumb travel", but the last "click" requires a bit further travel, to get the click!!!

The problem is that, if you not sure which gear you are in, and you use the normal "thumb travel" for the bigest cog, it will shift up, then drop back!!

If you treat each shift as though it were onto the biggest cog, then you jump 2 and come back to the selected one!!!

Hope this makes sence, and someone can tell me if its normal, or faulty???

[Dirtbreath]

Did you release the ratchet all the way before you set your gears?

[Bat-ass]

Yebo... setup is right,, its just that last gear i have to push the lever a little further before it clicks?

[Dirtbreath]

Then you might have damaged a ratchet tooth. If you have a warranty on the lever take it to your bike shop. If not and you care to pry, open up the lever and check if any of the teeth are damaged. I do not suggest taking the inner bits apart as they are near impossible to reassemble.

 

A bit of trouble shooting would be to remove the lever and click up and down all the way.

 

[AndreZA]

Check you limiter screw. It might just a tad too tight.

[Bat-ass]

Mampara..... i think you might be onto something there!!! i'll try that tonight... you dont have 14600 posts for nothing!!!!

[Bat-ass]

Sorry Mampara.. i just remembered,, when i changed the cables 2 weeks ago, i ran through the gear clicks without cables in,, and it did exactly the same. The last click had a slightly longer travel!!

[chuck]

But I believe Mampara is still correct. Putting the longer travel aside for a moment, if all the travel is taken up and the d?railleur defaults it is because it ran up against the limiter and could not engage properly.