I am having some issues with my drive trainsystem. I have changed my chain after quite a while (shame on me) with a new one, that i sized exactly on the same number of links as the old one. When pedalling however, when putting a high pressure on the pedal the chain skips.
My issue is, whether the chain is not sized properly (since I havent had this issue before) or is there a problem with worn casette cogs or the freewheel.
I get a from-factory setup of Sram casette and probably Shimano hub (not sure). The cogs are quite loose on the freewheel as you can see on the picture. I dont know if this normal, but would expect to hold firmly.
I usually ride on tough gears, so I dont know if the end of the freehub is demaged by this as you can see on the picture, or it is the design of the freehub.
Talking about the cogs, once again I dont know if they seem to be worn, or the edges are not sharp and look like this by design.
I would very much appreciate your advice on whether the cogs, or freehub have to be changed or it is probably just an issue with the chain length. Thanks in advance ! :)
EDIT: I just made a video to demonstrate how loose the cogs are. Even after tightening the lock, one can still rotate the cogs on the freewheel. Is this normal ?
My loose cogs on freehub (video on Youtube)
EDIT 2: I also post the picture of the fron chainring. Is this worn to much, or you think this is more probably causing the chain skipping, than the rear?