KTM 390 Duke (2017–2022) vs Suzuki Boulevard (2020–2025)

Factory maintenance schedules compared.

Service	KTM 390 Duke (2017–2022)	Suzuki Boulevard (2020–2025)VS55
Oil change	4,650 mi	n/a
Valve service	n/a	n/a
Spark plugs	n/a	n/a
Chain	n/a	n/a
Brake fluid	n/a	n/a
Coolant	48 mo	n/a

See the full maintenance matrix

Common questions

Which is cheaper to maintain, the KTM 390 Duke (2017–2022) or the Suzuki Boulevard (2020–2025)?

They demand a similar number of scheduled shop visits based on their factory service intervals.