I tried every known to me way of alligining and it just doesn't sit correctly Ltwoo A7 42 black set and it just doesn't shift good at all, it's always grinding, the derailleur seem to be moving even though it's tighten fully, chain is correct lenght, casette spins freely but it just caught on biggest cog, on smallest it grinds, I haven't even rode it because it just does not shift good, derailleur doesn't go from highest cog to small because cog is stuck on cassette on every shift it just doesn't spin correctly as if the chain was to close to the wall of cassete
by wielku
8 Comments
You need Park Tools guru’s help…
Watch [this video](https://www.youtube.com/watch?v=UkZxPIZ1ngY) & follow the steps slowly & carefully – works every time…
Maybe the shifter cable/housing is old and providing too much friction? Did you adjust the barrel adjuster for correct tension?
That cable routing looks very strange to me, shouldnt be a major issue though.
Is this the first time you set up a derailleur?
It’s hard to tell from the pics but it’s either your derailleur hangar that’s bent or it’s the derailleur cage. Could be both but from what I see I’m sure it’s just the derailleur hangar and you can try to bend it back but getting a new one is cheap and once you get a new one or straighten out the one you have then you can adjust the derailleur and it’ll shift just fine.
That last bit of housing is too long, try cutting it back
That is that is the weirdest cable routing I have ever seen.
the CABLE HOUSING is WRONG!!! It needs to be Shorter and rrouted correctly, that BEND is NOT GOOD!
1) check if the deraillieur is mounted correctly. It is hard to tell from the pics, but I think it has to be turned ccw by a few degrees, if you look on it.
2) shorten cable housing, it is too long. Correct lenght (+/- 1 inch) is neccessary for correct shifting.