KTM · Lightweight Sport
RC 390 Spec Sheet
MotoGP styling. Single-cylinder fun.
2026 · 373cc single · 6-Speed (PASC opt.)
Power
44hp
Torque
27lb-ft
Curb weight
≈382lb
0–60 mph
4.5s
Seat height
32.5in
MSRP
$5,899
ClassLightweight Sport
Model year2026
Stock colorKTM Orange
Road legalYes
Generations covered3
Parts in MotoModder78
FuelPremium (95 RON)
Oil changeevery 4,000 mi
Valve checkevery 16,000 mi
Rear tire150/60-17
Chain520
Performance & engine
Claimed figures for the US model, plus magazine-tested acceleration.
Engine373cc single
LayoutSingle
Displacement373 cc
Horsepower44 hp (claimed, US)
Torque27 lb-ft
Gearbox6-Speed (PASC opt.)
Clutchless shiftingNone
0–60 mph4.5 s
¼ mile13.0 s
Power-to-weight≈8.68 lb per hp
Curb weight≈382 lb (ready to ride)
FuelPremium (95 RON)
MSRP$5,899
≈ Estimated from the claimed dry weight plus fluids and a full tank.
Garage reference card
The numbers you look up mid-wrench. 15 of 15 published values are filled in; torque specs, plug gap, coolant and idle come from your owner's manual. Tap any value to edit it; your changes save on this device.
Tires & Chain
Fluids & Capacities
Engine & Electrical
mm
rpm
Chassis
Your edits save automatically. Reset restores the published values.
Service schedule
The intervals MotoMaintain uses for the RC 390, whichever comes first. Track them in MotoMaintain →
Engine Oil & FilterFresh oil and a new filter. The single most important service for engine life.
Every 4,000 mi or 12 mo Chain Clean & LubeClean and re-lube the chain. Do it more often in wet or dusty riding.
Every 500 mi Chain Tension & InspectionCheck chain slack, adjust if needed, inspect sprockets for wear.
Every 4,000 mi Air FilterInspect and replace the air filter. More often if you run a high-flow filter.
Every 12,000 mi Spark PlugsReplace spark plugs. Iridium plugs typically last the full interval.
Every 16,000 mi Brake FluidFlush and replace brake fluid. It absorbs moisture over time regardless of miles.
Every 24 mo CoolantDrain and replace engine coolant.
Every 24,000 mi or 36 mo Valve Clearance CheckMeasure valve clearances and shim as needed. A big, interval-based service — intervals vary a lot by engine.
Every 16,000 mi Brake PadsInspect pad thickness. Replacement is wear-based — track and aggressive riding wears them faster.
Check every 4,000 mi TiresInspect tread depth, pressure, and condition. Replacement is wear-based.
Check every 3,000 mi Full Service / InspectionComprehensive dealer-style inspection: fasteners, bearings, suspension, electrical, fluids.
Every 8,000 mi or 12 mo Generations
What changed between model years, so you know which parts and specs apply to yours.
2022–present
2022+ · Redesign
New frame, bigger tank, TFT, ride-by-wire.
2017–2021
2017–2021
Ride-by-wire, higher spec.
2015–2016
2015–2016 · Original
The original RC 390.