Kawasaki Z900 (2020–2025)
Fluid capacities, consumables, drivetrain, tire pressure & wear limits
The Kawasaki Z900 (2020–2025) takes 3.6 L of oil with a filter change (3.2 L without).
Fluid Capacities
Oil capacity (with filter)3.6 L
Oil capacity (without filter)3.2 L
Oil capacity (dry fill)4 L
Coolant (radiator)2.4 LFor the MY variant: 2.5 L total, filling radiator, engine, and reserve tank to the full mark.
Consumables
Engine oil gradeAPI SG, SH, SJ, SL or SM with JASO MA, MA1 or MA2, SAE 10W-40
Coolant typePermanent antifreeze (ethylene glycol, Green), 50/50 mixture with soft water
Oil filter (OEM)16097-0008From a Kawasaki oil filter fitment list — "Z900 ABS 2017-2026" covers this bike's full range.
Air filter (OEM)Viscous paper element — not listed by part number in the captured manual sections
Spark plug (OEM)NGK CR9EIA-9
Drive chainDAIDO EK525RMX3/3D (BR: DAIDO DID525HV3 when shipping), F/M 114 links, H/P 116 linksStandard chain make is ENUMA per the spec table; (BR market) DAIDO DID525HV3 as shipped
Clutch free play2–3 mm
Drivetrain
Chain size525
Chain links114 (F/M) / 116 (H/P)
Chain slack25–35 mm
Chain 20-link limit319 mmNew chain 20-link length standard: 317.5–318.2 mm
Front sprocket (OEM)15TDerived from the final drive reduction ratio — F/M 2.933 (44/15), H/P 3.067 (46/15)
Rear sprocket (OEM)44T (F/M) / 46T (H/P)Derived from the final drive reduction ratio — F/M 2.933 (44/15), H/P 3.067 (46/15)
Brakes & Tires
Front tire size120/70ZR17 M/C (58W)
Rear tire size180/55ZR17 M/C (73W)
Front tire pressure250 kPa
Rear tire pressure290 kPaUp to 180 kg load
Brake fluid typeDOT 4
Wear Limits
Front brake disc (min)4.5 mmDisc thickness standard is 4.8–5.2 mm — the manual publishes one figure that covers both front and rear rather than separate specs.
Rear brake disc (min)4.5 mmDisc thickness standard is 4.8–5.2 mm — the manual publishes one figure that covers both front and rear rather than separate specs.
Brake pad — front (min)1 mmStandard lining thickness: 4 mm
Brake pad — rear (min)1.5 mmStandard lining thickness: 5 mm
Clutch friction plate (min)2.6 mmStandard thickness: 2.72-2.88mm. Matches the 2017-2018 gen exactly — genuinely different from the 2025-2026 gen's 2.5mm limit.
Drive chain slack (limit)35 mmEquals the standard adjustment range maximum — the manual does not define a separate over-limit threshold