Хроники Города Глупова - Помощь клуба: Велосипедное: SRAM X-7 rear derailleur
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Помощь клуба: Велосипедное: SRAM X-7 rear derailleur|
There are good videos on yt about tuning the derailleurs. Just make sure not to use any Russian language guides, I found them misleading. In reality there are around 5 parameters to tune (low/high limit, coarse and fine cable tension, and f-screw which is rarely needed). Turn Hi/lo screws first, make sure the chain doesn't fall off hi/lo gears and there's minimal noise when the chain is rolling over them then iteratively adjust cable tension until swithching is smooth. Then you only have to use barrel adjuster once in a while after you remove the wheel etc. Cheap derailleurs don't hold settings tight, so they need to be finely adjusted often. But the cable will stretch anyway, so it's not just about derailleurs.
and don't worry too much if u have to push shifter a little beyond "the click" when switching from smaller to bigger gear -- it is normal to some extent (particularly under load) (while oppesite movement must be smoother)