KTM 990 Duke (2024–2027) vs Suzuki Boulevard C90 B.O.S.S. (2017–2018)

Factory maintenance schedules compared.

Service	KTM 990 Duke (2024–2027)	Suzuki Boulevard C90 B.O.S.S. (2017–2018)VY56
Oil change	9,321 mi	n/a
Valve service	18,641 mi	n/a
Spark plugs	18,641 mi	n/a
Chain	9,321 mi	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 990 Duke (2024–2027) or the Suzuki Boulevard C90 B.O.S.S. (2017–2018)?

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