Harley-Davidson Road King Classic (2011–2017) vs KTM Duke (2023–2027)
Factory maintenance schedules compared.
| Service | Harley-Davidson Road King Classic (2011–2017) | KTM Duke (2023–2027) |
|---|---|---|
| Oil change | n/a | 6,200 mi |
| Valve service | n/a | 12,400 mi |
| Spark plugs | n/a | 12,400 mi |
| Chain | n/a | 6,200 mi |
| Brake fluid | n/a | 24 mo |
| Coolant | n/a | n/a |
Common questions
Which is cheaper to maintain, the Harley-Davidson Road King Classic (2011–2017) or the KTM Duke (2023–2027)?
They demand a similar number of scheduled shop visits based on their factory service intervals.