2025 KTM 390 Adventure R vs 2023 Yamaha YZ450FX

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2025 KTM 390 Adventure R 2025 KTM 390 Adventure R

Enduro / Off-Road

Engine
Four stroke, single cylinder, DOHC with finger followers, 4 valves
Power
33 kW / 44.3 hp @ 8500 rpm
Top Speed
N/A
Weight
165 kg / 364 lbs
2023 Yamaha YZ450FX 2023 Yamaha YZ450FX

Enduro / Off-Road

Engine
Titanium valves
Power
N/A
Top Speed
N/A
Weight
254.0 pounds
Full Specifications
General
Comments-Power Tuner App. Adjustable Engine Mapping.
Year2025-
Colours-Team Yamaha Blue
Make ModelKTM 390 Adventure R-
Warranty-30 Day Limited Factory Warranty
Dimensions
Ground Clearance (in.)-12.6 inches
Ground Clearance (mm)-320 mm
Seat Height870 mm / 34.3 in955 mm / 37.6 in.
Wheelbase1481 mm / 58.3 in1481 mm / 58.3 in.
Height-1280 mm / 50.4 in.
Length-2174 mm / 85.6 in.
Width-826 mm / 32.5 in.
Weights & Capacities
Fuel Capacity14 L / 3.7 US gal8.33 litres / 2.20 US gallons
Wet Weight165 kg / 364 lbs115.2 kg / 254.0 lbs
Performance
Max Power33 kW / 44.3 hp @ 8500 rpm-
Max Torque39 Nm / 28.7 lb-ft @ 7000 rpm-
Engine
Bore x Stroke (in,)-3.8 x 2.4 inches
Bore x Stroke (mm)-97.0 x 60.9 mm
Engine Type-Single cylinder, four-stroke
Fuel Control-Double Overhead Cams/Twin Cam (DOHC)
Displacement (cc)-449.7 cc
Displacement (ci)-27.44 cubic inches
Displacement398.7 cc / 24.3 cu-in-
Engine DetailFour stroke, single cylinder, DOHC with finger followers, 4 valvesTitanium valves
Fuel System-Injection. Mikuni® 44mm
Bore x Stroke89 x 64 mm-
Compression Ratio12.6:113.0:1
Cooling SystemLiquid Cooled-
EmissionsEURO 5+-
Engine Lubrication-Wet sump
Engine ManagementBosch EMS with RBW-
Fuel InductionBosch fuel injection, 46 mm throttle body-
LubricationWet sump-
StarterElectricElectric
Valve System-4
Drivetrain
ClutchPASC slipper clutch, mechanically operatedWet multi-disc
Final DriveChain 520-X RingChain   (final drive)
Gearbox-5-speed
Primary Drive86:33O-ring chain
Transmission / Drive6 Speed-
Chassis
Frame TypeSteel trellis frame, powder coated, with bolt-on subframeAluminum Bilateral Beam
Suspension - Front43mm WP APEX 43, compression and rebound adjustble, 30 clicksKYB® spring-type fork with speed sensitive damping; fully adjustable
Suspension - RearWP APEX Split Piston, preload with top ring and rebound, 20 clicksKYB® single shock; full adjustable
Rake-27.2°
Steering Head Angle63.1°-
Trail-117 mm / 4.6 in.
Wheel Travel - Front230 mm / 9.1 in310 mm / 12.2 in.
Wheel Travel - Rear230 mm / 9.1 in318 mm / 12.5 in.
Wheels & Brakes
Brakes - FrontSingleSingle disc. Hydraulic
Brakes - RearSingle 240 mm disc, Bybre floating 1 piston caliperSingle disc. Hydraulic
ABSBosch 10.3 Modular with Offroad mode-
Rims-Dunlop Geomax MX33 tyres
Tyres - Front90/90 x R21 M/C 54T M+S80/100-21
Tyres - Rear140/80 x R18 M/C 70T M+S-
WheelsWire spoke, aluminium rims-
Wheels - Front21 x 1.85-
Wheels - Rear18 x 2.5-

Verdict

Winner on specs

2025 KTM 390 Adventure R

The 2025 KTM 390 Adventure R edges out the 2023 Yamaha YZ450FX thanks to its lower seat height, liquid cooling and standard ABS. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.

Key Differences

2025 KTM 390 Adventure R - Advantages

  • Lower seat height: 870 mm vs 955 mm - accessible to a wider range of rider heights.
  • Liquid cooling: Consistent engine temperature in stop-start traffic and hot climates.
  • Standard ABS: A meaningful safety advantage in emergency braking on wet or loose surfaces.

2023 Yamaha YZ450FX - Advantages

  • More rear wheel travel: 318 mm vs 230 mm - absorbs bigger hits and rough terrain better.
  • More front wheel travel: 310 mm vs 230 mm - greater compliance over rough surfaces.

2025 KTM 390 Adventure R vs 2023 Yamaha YZ450FX - FAQs

What are the engine differences between the 2025 KTM 390 Adventure R and 2023 Yamaha YZ450FX?
The 2025 KTM 390 Adventure R uses Four stroke, single cylinder, DOHC with finger followers, 4 valves, while the 2023 Yamaha YZ450FX is powered by Single cylinder, four-stroke.
Which bike is better for shorter riders, the 2025 KTM 390 Adventure R or the 2023 Yamaha YZ450FX?
The 2025 KTM 390 Adventure R has the lower seat at 870 mm, making it more accessible. The 2023 Yamaha YZ450FX sits higher at 955 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.
Does the 2025 KTM 390 Adventure R or 2023 Yamaha YZ450FX have ABS?
The 2025 KTM 390 Adventure R is listed with ABS as standard. The 2023 Yamaha YZ450FX does not list ABS. ABS provides a meaningful safety benefit in emergency braking on wet or loose surfaces.
Which should I buy, the 2025 KTM 390 Adventure R or the 2023 Yamaha YZ450FX?
Both are strong choices. The 2025 KTM 390 Adventure R has the edge in lower seat height and liquid cooling, while the 2023 Yamaha YZ450FX stands out for higher rear wheel travel and higher front wheel travel. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.