CZ 125 Workshop Manuals
If you need to do fixes to your CZ 125 then it will always be recommended to have a Workshop Manual to use as personal reference just in case you want to know proven methods to strip off a particular part including Chain and match it again efficiently.
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CZ 125 Workshop Manuals can offer you particular diagnostic guidelines on your motorcycle so if something is playing up it can help you understand what the issue is and methods to correct it. You can then determine if you can do this by yourself or if ever the job is too big you can actually make a booking for your 125 in with a decent motorcycle garage.