KTM 390 Duke (2017-2018)
Sprockets & Gearing
The KTM 390 Duke (2017-2018) runs a 15T front sprocket and a 45T rear sprocket.
Sprockets & Gearing
Front sprocket (OEM)15T
Rear sprocket (OEM)45T
Chain size520
FAQ
What is the stock front sprocket size on the KTM 390 Duke (2017-2018)?
15T (OEM).
What is the stock rear sprocket size?
45T (OEM).