2025 Sym ADX 300 vs 2025 Sym HD 300

The Sym HD 300 records higher torque and larger displacement than the Sym ADX 300.

Recorded specification differences

  • Model: Sym ADX 300 Sym ADX 300, Sym HD 300 Sym HD 300
  • Displacement: Sym ADX 300 278, Sym HD 300 278.3
  • Torque: Sym ADX 300 26, Sym HD 300 26.2
  • Seat height: Sym ADX 300 79, Sym HD 300 80.5
Sym ADX 300 vs Sym HD 300 key specifications
SpecSym ADX 300Sym HD 300
Year20252025
CategoryScooterScooter
Displacement278278.3
Power25.5-
Torque2626.2
Weight-175

Torque

The Sym HD 300 records 26.2 Nm of torque, 0.2 Nm (0.8%) more than the Sym ADX 300 at 26 Nm.

Displacement

The Sym HD 300 records 278.3 cc, 0.3 cc (0.1%) more than the Sym ADX 300 at 278 cc.

Seat height

The Sym HD 300 has a higher recorded seat height (80.5) than the Sym ADX 300 (79), a difference of 1.5.

Frequently asked questions

Which motorcycle records more torque, the Sym ADX 300 or the Sym HD 300?

The Sym HD 300 records 26.2 Nm of torque, 0.2 Nm (0.8%) more than the Sym ADX 300 at 26 Nm.

Which motorcycle records larger displacement, the Sym ADX 300 or the Sym HD 300?

The Sym HD 300 records 278.3 cc, 0.3 cc (0.1%) more than the Sym ADX 300 at 278 cc.

How do the recorded seat heights of the Sym ADX 300 and the Sym HD 300 compare?

The Sym HD 300 has a higher recorded seat height (80.5) than the Sym ADX 300 (79), a difference of 1.5.

VS
Sym logo

Sym ADX 300

2025Scooter

Displacement278 cc
Power25.5 hp
Sym logo

Sym HD 300

2025Scooter

Displacement278.3 cc

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Sym ADX 300

2025 • Scooter

Sym HD 300

2025 • Scooter

Engine & Performance

Engine Displacement
278 cc
278.3 cc
Power
25.5 hp
-
Torque
26 Nm
26.2 Nm
Engine Type
-
Other
Engine Details
SOHC
Other | OHC | Cylinder: 1

Fuel & Capacity

Fuel System
Injection
Injection
Cooling System
Liquid-cooled
Liquid-cooled
Starter
Electric
Electric

Transmission & Drive

Gearbox
Automatic
Automatic
Transmission
Belt
Belt

Chassis & Suspension

Front Suspension
Telescopic
Telescopic
Rear Suspension
Twin-Shock
Twin-Shock

Brake System

Front Brakes
Disc ABS
Disc ABS
Rear Brakes
Disc ABS
Disc ABS

Tires & Wheels

Front Tyre
120/70-15
110/70-16
Rear Tyre
140/70-14
140/70-16

Dimensions & Weight

Length
218.5 cm
222 cm
Height
132.5 cm
122.5 cm
Seat Height
79 cm
80.5 cm
Wheelbase
151 cm
150.5 cm
Ground Clearance
16 cm
-
Wet Weight
-
175 kg

Disclaimer: The technical specifications, performance values, ride profile analyses, match scores, and other data presented on this page are compiled for informational purposes and processed through algorithmic calculations. Their source, license, and commercial-use rights are not fully documented. This information does not constitute a definitive, official, or binding reference. Actual values may vary depending on the model year, market, equipment options, riding conditions, and individual use. Before making a purchase decision, we strongly recommend consulting an authorized dealer or the manufacturer for verified and up-to-date specifications. RPMVault assumes no liability for any decisions made based on the information provided on this page.