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How to Replace the Sprocket on a KTM Duke 390

Model: Ktm Duke 390

Video tutorial

In this video tutorial, see how to disassemble and replace the sprocket on a KTM Duke 390 motorcycle, as well as on the 125 and 250 models. First, position the bike on a stand and start by removing the protective cover of the sprocket by unscrewing the securing screws; once removed, you can loosen your chain by unscrewing the rear adjustment screw, as shown in the video.

At this point, unscrew the central nut of the sprocket and remove the circlip; extract it and replace it with the new one of the correct type and with the same tooth count: apply the reverse procedure for reassembly!


Updated on 15 April 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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