KTM 990 Duke (2024–2027) vs Suzuki Boulevard S40 (2007–2022)

Factory maintenance schedules compared.

Service	KTM 990 Duke (2024–2027)	Suzuki Boulevard S40 (2007–2022)NP41
Oil change	9,321 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 990 Duke (2024–2027) or the Suzuki Boulevard S40 (2007–2022)?

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