MotoSpecs

2015 Suzuki RM-Z450 vs 2016 KTM 250 SX

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2015 Suzuki RM-Z450 2015 Suzuki RM-Z450

Cross / motocross

Engine
Single cylinder, four-stroke
Power
N/A
Top Speed
N/A
Weight
249.1 pounds
2016 KTM 250 SX 2016 KTM 250 SX

Cross / motocross

Engine
Single cylinder, two-stroke
Power
N/A
Top Speed
N/A
Weight
95.9 kg / 211.4 lbs
Full Specifications
General
ColoursChampion YellowOrange/white/black
Warranty12 month unlimited mileage limited warranty.-
Dimensions
Ground Clearance (in.)12.8 inches15.2 inches
Ground Clearance (mm)325 mm385 mm
Seat Height955 mm / 37.6 in.992 mm / 39.1 in.
Wheelbase1,495 mm / 58.9 in.1,495 mm / 58.9 in.
Height1,270 mm / 50.0 in.-
Length2,190 mm / 86.2 in.-
Width830 mm / 32.7 in.-
Weights & Capacities
Dry Weight-95.9 kg / 211.4 lbs
Fuel Capacity6.20 litres / 1.64 gallons7.00 litres / 1.85 gallons
Wet Weight113.0 kg / 249.1 lbs-
Engine
Displacement (cc)-249.00 cc
Bore x Stroke (mm)96.0 x 62.1 mm66.4 x 72.0 mm
Engine TypeSingle cylinder, four-strokeSingle cylinder, two-stroke
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)-
Displacement (ci)-15.19 cubic inches
Bore x Stroke (in,)3.8 x 2.4 inches2.6 x 2.8 inches
Engine DetailAluminum cylinder with Suzuki Composite Electrochemical Material (SCEM) coatingReed intake.
Fuel SystemInjectionCarburettor. Keihin PWK 38S AG
Compression Ratio12.5:1-
Engine LubricationSemi-dry sump-
IgnitionElectronic ignitionContactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
StarterKickKick
Valve System4-
Drivetrain
Clutch-Wet, DDS multi-disc clutch, Brembo hydraulics
Final DriveChainChain
Gearbox5-speed5-speed
Primary DriveChain, DID520MXV4, 114 links13:48. Primary drive: 26:72. 520 X-ring chain.
Chassis
Frame Type-Chrome-molybdenum steel central-tube
Suspension - FrontInverted telescopic, coil spring, oil dampedWP USD closed cartridge ? 48 mm
Suspension - RearLink type, coil spring, oil dampedWP shock absorber with linkage
Rake-26.5°
Wheel Travel - Front-300 mm / 11.8 in.
Wheel Travel - Rear-300 mm / 11.8 in.
Wheels & Brakes
Brakes - Front Diameter (mm)-260 mm
Brakes - Front Diameter (in.)-10.2 inches
Brakes - Rear Diameter (in.)-8.7 inches
Brakes - Rear Diameter (mm)-220 mm
Brakes - FrontSingle discSingle disc. Four-piston calipers.
Brakes - RearSingle discSingle disc. Two-piston calipers.
Tyres - Front80/100-21-
Tyres - Rear110/90-19-

Verdict

Winner on specs

2015 Suzuki RM-Z450

The 2015 Suzuki RM-Z450 edges out the 2016 KTM 250 SX thanks to its lower seat height and fuel injection. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.

Key Differences

2015 Suzuki RM-Z450 - Advantages

  • Lower seat height: 955 mm vs 992 mm - accessible to a wider range of rider heights.
  • Fuel injection: Precise fuelling, better cold-start reliability, and lower maintenance requirements.

2016 KTM 250 SX - Advantages

  • More ground clearance: 385 mm vs 325 mm - better clearance over rocks and obstacles.

2015 Suzuki RM-Z450 vs 2016 KTM 250 SX - FAQs

What are the engine differences between the 2015 Suzuki RM-Z450 and 2016 KTM 250 SX?
The 2015 Suzuki RM-Z450 uses Single cylinder, four-stroke, while the 2016 KTM 250 SX is powered by Single cylinder, two-stroke. This is a fundamental difference - the 2015 Suzuki RM-Z450 is a four-stroke engine while the 2016 KTM 250 SX runs a two-stroke, resulting in very different power delivery, maintenance requirements, and riding character.
Which bike is better for shorter riders, the 2015 Suzuki RM-Z450 or the 2016 KTM 250 SX?
The 2015 Suzuki RM-Z450 has the lower seat at 955 mm, making it more accessible. The 2016 KTM 250 SX sits higher at 992 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.
Which should I buy, the 2015 Suzuki RM-Z450 or the 2016 KTM 250 SX?
Both are strong choices. The 2015 Suzuki RM-Z450 has the edge in lower seat height and fuel injection, while the 2016 KTM 250 SX stands out for greater ground clearance. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.

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