Tag Info

New answers tagged

1

Surest way: Measure the screw on the other shifter and get a replacement at any place which sells screws. Use screw glue if you already know the screw comes loose easily.


2

If you're friction shifting go with the Dia Compe. They have a ratcheting mechanism in them originally developed by SunTour to counteract the spring in the derailleur. This gives them a very even feel in both directions - you apply as much pressure to upshift as to downshift. They also look better on older bikes. The Shimano shifters OTOH rely purely on ...


2

When you upgrade shifters (provided you have the right compatibility), you're paying for (or trading off between): Lower weight More strength/durability Reliability In the sense that Alivio > Altus, you should be getting some of these. However, if your shifters and what not are in good condition (i.e. good cable runs, shifters in good condition, ...


2

Without the shifter's resistance, the rear derailleur pulls towards the smallest cog (highest gear). This would also happen, e.g., when the shift cable snaps. (Rarer 'inverse' derailleurs would pull towards the largest cog.) To test the rear derailleur, pull the shift cable with your hand while turning the crank; if the derailleur moves and pushes the chain ...


3

The Ergopower shifters have a part called G spring that eventually wears out. The symptoms are inaccurate shifting and less sharp clicks, just as you are experiencing. The part is still available, not expensive and relatively easy to change. I would not replace the shifters with Xenon, as it is generally much lower quality and doesn't allow downshifting ...


0

Shimano doesn't make parts available for repairs. If you're under warranty, you could ask your LBS to have it swapped out for a new/refurb. Your LBS might also have a used or like-new in their parts bin. Otherwise, what most people do is to step up and buy a new shifter/brifter. The prices are such that it makes sense to buy above Sora and to get a Tiagra ...


2

Your problem is worn out (or broken) index springs aka G-springs. These are part of the shifter mechanism. Worn out G-springs will enable rear derailleur spring to pull the cable over the indexes. One way to test is putting the rear derailleur on bigger sprocket and pull the cable. If it drops indexes (goes to smaller sprocket) then the problem is caused ...



Top 50 recent answers are included