These are genuine official JT Chain Links (Rivet).
You can find a chain tool suitable for fitting rivet links to chain by clicking here.
This heavy duty Split & Rivet link is manufactured to a very high quality, fits all JT 520 Z3 chains and may also fit 520 pitch chains from other brands.
It is easy to install and doesn't take an expert to fit so you can be back on your bike in a short amount of time.
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