Harley-Davidson Nightster (2007–2012) vs KTM 390 Duke (2017–2022)
Factory maintenance schedules compared.
| Service | Harley-Davidson Nightster (2007–2012) | KTM 390 Duke (2017–2022) |
|---|---|---|
| Oil change | n/a | 4,650 mi |
| Valve service | n/a | n/a |
| Spark plugs | n/a | n/a |
| Chain | n/a | n/a |
| Brake fluid | n/a | n/a |
| Coolant | n/a | 48 mo |
Common questions
Which is cheaper to maintain, the Harley-Davidson Nightster (2007–2012) or the KTM 390 Duke (2017–2022)?
They demand a similar number of scheduled shop visits based on their factory service intervals.