>>1338798Chain is insanely stretched, this causes the teeth mismatch. You need to replace it.
The chainring is worn out too, also replace that.
>>1339159>chain too shortNo, a too short chain would still fit in the teeth. You get in trouble with the rear derailer slack with a too short chain.
>>1339214A worn chainring cannot cause the mismatch, the number of teeth on the diameter is still the same.
It is the stretched chain.
>the mismatch could theoretically also be caused by a chain that's too shortwrong, see above
>bike needs a new casetteHow would you know? It's not on the pic. If the casette has as many miles as the chain and chain rings you are propably right.
>buy your own chain checker toolNah, not worth it, chains are so cheap. Just replace the chain when you don't know how many miles it has.
This nigga gets it:
>>1338904>>1339205Stop shilling China is always shit. The device you are posting from is from China and is super high tech compared to a fucking bike frame.
also see
>>1339474>>1339772Actual shoe sizes vary greatly on manufacturer and destination market. It like xs, s, m, l, xl, xxl - could mean anything.
>>1340544Because they look so cool and tough and massive and are really in right now. Think of people driving SUVs in urban territory.
Most of my friends ride mtbs in urban territory and I have to pedal half as much as these guys on a tour with my roadie.
