I've been laboring at this thing for weeks. Not a bike person, but my chain snapped and I don't wanna take it into some shop cuz I thought replacing it myself would be cheaper.
Fast-forward 3 weeks, I got the new chain, I got the lube, I got (some of) the tools, but when I try to ride, the chain still keeps slipping off of the gears… And I'm convinced it's because this derailer is supposed to be in a different position.
by Ev3ryN4m3I5T4k3n
8 Comments
Go to youtube, search parktool videos
Derailleur is a spring and won’t stretch outwards without a chain.
https://www.parktool.com/en-us/blog/repair-help/chain-length-sizing
https://www.parktool.com/en-us/blog/repair-help/chain-replacement-derailleur-bikes
https://www.parktool.com/en-us/blog/repair-help/rear-derailleur-adjustment
That should cover it.
Basically you have to first set/check the limit screws, tension the cable and finally check indexing, but yeah, search park tool videos and you’ll be fine
Are you sure you sized the chain properly? If you still have the old chain, and that worked okay before snapping, just make the new one the same length. If you installed a new chain without taking any links out first, it’s likely too long.
It’s probably skipping because your cassette/freewheel is worn and doesn’t mesh with your new chain.
If you bought the right chain, i.e. the one suitable for the number of gears, and its length is correct, it only means that your cassette is worn out and needs to be replaced as well.
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