Chain Slipping

[JAW2020]

Chain slips still under pressure even after changing the chain to new and derailer good condition.. free wheel is this warn maybe

 

[weareHKR]

Hi there,
Is that just a general statement or are you asking a question?
If the latter, the best way for help is to introduce yourself in the New Member thread first.
There's all the help you need in here.

 

[BurningLegs]

Cassette is worn 🙂

 

[Ming the Merciless]

It means you left it too late and the cassette and/or chain rings will also need replacement

 

[Cycleops]

You need a new cassette, unless you have installed a very cheap chain which don’t play well with modern cassettes.

to the forum.

 

[si_c]

Cassette most likely. Freehub wouldn't cause the chain to slip, it might cause it to lock up when freewheeling but not slip.

 

[roadrash]

^^^^ wot they sed^^^^^

 

[DRM]

Yes your freewheel has seen better days

 

[Ajax Bay]

As above (need new cassette/freewheel block to match new chain), but what bike and number of sprockets at rear? (for additional help)
https://www.sheldonbrown.com/free-k7.html

 

[JAW2020]

Cassette is worn 🙂

I have changed chain and my cassette is the problem the rear derailer is fine ..

Thanks for your reply back

 

[JAW2020]

Here is the cassette

 

[C R]

Here is the cassette

Can't see much of the cassette, but I would say that the derailleur clamp is too far forward in the dropout, it should be all the way back. Not sure if that would have any bearing on chain slip

 

[Ming the Merciless]

Here is the cassette

Can you provide a picture showing both cassette and whole derailleur? It almost looks like the chain isn’t threaded through the derailleur but hard to tell in such a close up shot.

 

[DRM]

Can't see much of the cassette, but I would say that the derailleur clamp is too far forward in the dropout, it should be all the way back. Not sure if that would have any bearing on chain slip

This ^ the hanger assembly should be further back for starters,

I have changed chain and my cassette is the problem the rear derailer is fine ..

Thanks for your reply back

You say you’ve changed the chain, the cassette/freewheel will no longer match the new chain, hence the slipping, other causes of ghost changes are frayed gear cables, also Inner gear cable sticking in the outer due to dirt & corrosion, put your bike into the largest cog on the cassette, now change gear into the smallest cog with the shifter, but don’t pedal so the chain stays put, the gear cable will now be slack, unhook the outer from the stop on the frame, and slide it down the inner, look for frayed bits of cable, don’t forget to check under the bottom bracket guide where the cable passes, if it’s just dirty clean up and put a film of grease on the inner cable and put the outer cable back into the derailleur and frame stop, just change gear back to the largest cog on the shifter to put the cable back under tension, and give a try out, if it’s frayed, or excessively corroded/dirty replace the inner & outer cable

 

[Ajax Bay]

As an observation, this new chain has started to exhibit surface rust. I surmise that it has been inadequately oiled (recommend use of wet not dry lube at this time of year) and if a rider's been out in the wet, it's worth giving the cassette a quick spray of hygrophobic stuff (eg WD40/GT85, not oil) after returning home.