The stock RC390 chain is endless ( no master link) . I got a smaller rear sprocket to give more top speed. I also ordered a Ktm master link for the chain so I could take out a few links and still use the stock chain. Sadly, the master link KTM supplied won't work with the stock chain. Moral of the story....don't waste your money on a master link. Just go buy a nice DID gold coloured chain and use it! Parillaguy
 

psych0hans

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The stock RC390 chain is endless ( no master link) . I got a smaller rear sprocket to give more top speed. I also ordered a Ktm master link for the chain so I could take out a few links and still use the stock chain. Sadly, the master link KTM supplied won't work with the stock chain. Moral of the story....don't waste your money on a master link. Just go buy a nice DID gold coloured chain and use it! Parillaguy
Thanks for the heads up!
 
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