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2021 Vespa GTS Super 300 Overview
Vespa GTS Super 300 is a scooter motorcycle, displacing 278 cc. Power comes from a Single cylinder, four-stroke engine. Bore and stroke come in at 75 x 63 mm. On the performance side, it delivers 26 Nm @ 5250 Revolutions of torque. Top speed is factory-quoted at 128.8 km/h. On the road, the 2021 GTS Super 300 tips the scales at 158 kg, carries an 8.50-litre fuel tank, offers a seat height of 790 mm and spans a 1375 mm wheelbase. The full 2021 Vespa GTS Super 300 spec sheet below covers every technical detail, from suspension travel to tyre sizes.
2021 Vespa GTS Super 300 compared with other bikes in the Scooter category
We checked the recorded figures for the 2021 Vespa GTS Super 300 against up to 1110 bikes in the Scooter category in our database, counting each model once at the model year nearest to this one.
- Only 48 of the other 368 bikes in the Scooter category have a higher top speed than the 129 km/h of the GTS Super 300.
- With 278 cc, the GTS Super 300 has the joint 200th largest engine displacement of 1110 bikes in the Scooter category, 44% above the category average of 193 cc.
- Torque of 26 Nm is higher than that of 612 of the other 795 bikes in the Scooter category.
- Narrowing the field to the 123 models within five model years of it, the top speed of 129 km/h is higher than that of 93 of the other 122.
Versus the 2019 model
Compared with the 2019 model, peak torque increased from 22.3 Nm to 26 Nm (+3.7 Nm). Displacement, seat height and top speed are unchanged.
2021 GTS Super 300 - Pros & Cons
Strengths
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🔧
Fuel injection: Fuel injection means consistent cold starts and clean throttle response without the fussiness of a carbureted setup.
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🛑
Strong front braking: Stopping power up front is strong thanks to the single disc setup, with plenty of room to upgrade further with braided lines.
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🛡️
ABS fitted: ABS comes fitted from the factory - one less thing to worry about in a sudden stop on a slippery surface.
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⚙️
Low-maintenance final drive: Running a belt final drive cuts out the regular chain cleaning and tensioning that most bikes need.
Considerations
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⛽
Modest fuel capacity: Range between stops is limited by the 8.50-litre tank - plan fuel stops accordingly on longer routes.
Wear Points & Servicing Notes
Fuelling & injector care
The fuel injection on the GTS Super 300 needs little beyond good fuel and periodic use of an injector-cleaner additive - no jetting or float-bowl maintenance to worry about.
Brake disc and pad wear
Braking up front comes from single disc with ABS and hydraulic - solid stopping power, with disc and pad wear best checked on the same schedule as tyre changes.
Suspension condition on used examples
The GTS Super 300's suspension runs Single arm, dual chamber hydraulic shock absorber with coaxial spring at the front. The rear uses Two dual effect shock absorbers with adjustable preload. Fork-seal condition and rear linkage play are the two things worth checking before buying used.
Final drive maintenance
The GTS Super 300 runs belt final drive: no lubrication or frequent adjustment like a chain, though belt tension and wear are worth a periodic look.
Frame & chassis check
Built around a Sheet steel shell with welded structural reinforcements, the GTS Super 300's chassis is straightforward to inspect: look for corrosion, cracks or repair welds around stress points like the head-stock and swingarm mounts.
GTS Super 300 - Buying & Maintenance Guide
What to check before buying
Before handing over money for a used 2021 Vespa GTS Super 300 with its 278 cc scooter, cover the fundamentals: service book and oil change history, drivetrain wear, and any sign of oil weeping around the casings. This model runs belt final drive, so check belt tension and tooth wear - a cracked or glazed belt is a clear sign of neglect. Now 5 years old, this scooter is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. Cold-starting it yourself tells you a lot - a healthy GTS Super 300 should catch quickly and settle into a smooth idle.
Oil and filter changes
Nothing protects the GTS Super 300's 278 cc single cylinder, four-stroke like disciplined oil changes - stay on the manufacturer's schedule (roughly every 6,000 km or annually). Match the viscosity grade to what the owner's manual specifies, not what's cheapest.
Fuel system care
Fuel injection on the GTS Super 300 needs little attention beyond decent fuel and an occasional system-cleaner additive. Anything left standing for three months or more should have its fuel drained and replaced before it varnishes the injectors.
2021 Vespa GTS Super 300 - Frequently Asked Questions
What engine does the 2021 Vespa GTS Super 300 have?
The 2021 Vespa GTS Super 300 uses a Single cylinder, four-stroke engine with 278 cc of displacement.
What is the top speed of the 2021 Vespa GTS Super 300?
The 2021 Vespa GTS Super 300 has a factory-quoted top speed of 128.8 km/h. Real-world speeds vary depending on rider weight, conditions and state of tune.
How much does the 2021 Vespa GTS Super 300 weigh?
The 2021 Vespa GTS Super 300 weighs 158 kg. This is the manufacturer's dry figure.
How much torque does the 2021 Vespa GTS Super 300 produce?
The 2021 Vespa GTS Super 300 produces 26 Nm @ 5250 Revolutions of torque.
What is the fuel tank capacity of the 2021 Vespa GTS Super 300?
The 2021 Vespa GTS Super 300 has an 8.50-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 141-170 km between stops.
Is the 2021 Vespa GTS Super 300 suitable for shorter riders?
The 2021 Vespa GTS Super 300 has a seat height of 790 mm. This is a moderate seat height that suits a wide range of rider heights.
What brakes does the 2021 Vespa GTS Super 300 have?
The 2021 Vespa GTS Super 300 uses single disc with ABS and hydraulic at the front and single disc with ABS and hydraulic at the rear.
What tyre sizes does the 2021 Vespa GTS Super 300 use?
The front tyre size on the 2021 Vespa GTS Super 300 is 120/70-12.
Vespa GTS Super 300 Spec Evolution
The Vespa GTS Super 300 was produced across 5 model years (2017-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2017 |
2019 |
2021 |
2022 |
2023 |
| Fuel Capacity |
9.08 litres / 2.40 gallons |
8.50 litres / 2.25 US gallons |
8.50 litres / 2.25 US gallons |
8.50 litres / 2.25 US gallons |
8.50 litres / 2.25 US gallons |
| Displacement (ci) |
- |
16.96 cubic inches |
16.96 cubic inches |
16.98 cubic inches |
16.98 cubic inches |
| Displacement (cc) |
- |
278.0 cc |
278.0 cc |
278.3 cc |
278.3 cc |
| Comments |
- |
- |
Traction control |
Traction control. USB socket. |
Traction control. USB socket. Keyless ignition. |
| CO2 |
68.2 CO2 g/km. (CO2 - Carbon dioxide emission) |
76.6 CO2 g/km. (CO2 - Carbon dioxide emission) |
74.5 CO2 g/km. (CO2 - Carbon dioxide emission) |
74.5 CO2 g/km. (CO2 - Carbon dioxide emission) |
76.6 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Frame Type |
Load-bearing sheet steel chassis |
Load-bearing sheet steel chassis |
Sheet steel shell with welded structural reinforcements |
Sheet steel shell with welded structural reinforcements |
Sheet steel shell with welded structural reinforcements |
| Wheelbase |
1,369 mm / 53.9 in. |
1950 mm / 76.8 in. |
1375 mm / 54.1 in. |
1375 mm / 54.1 in. |
1380 mm / 54.3 in. |
| Suspension - Front |
Single arm, dual chamber hydraulic shock absorber with coaxial spring |
Single arm, dual chamber hydraulic shock absorber with coaxial spring |
Single arm, dual chamber hydraulic shock absorber with coaxial spring |
Single arm with helical spring and hydraulic shock absorber |
Single arm with helical spring and hydraulic shock absorber |
Key Specifications
Engine
Single cylinder, four-stroke
Torque
26.0 Nm (2.7 kgf-m or 19.2 ft.lbs) @ 5250 Revolutions
Top Speed
128.8 km/h / 80.0 mph
Weight
158 kg / 348.3 lbs
Fuel Capacity
8.50 litres / 2.25 US gallons
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Full 2021 Vespa GTS Super 300 Specifications
Comments
Traction control
Colours
Yellow, White, Red, Black
Warranty
2 years, unlimited mileage
Seat Height
790 mm / 31.1 in.
Wheelbase
1375 mm / 54.1 in.
Height
1375 mm / 54.1 in.
Length
1950 mm / 76.8 in.
Width
755 mm / 29.7 in.
Dry Weight
158 kg / 348.3 lbs
Fuel Capacity
8.50 litres / 2.25 US gallons
Displacement (cc)
278.0 cc
Displacement (ci)
16.96 cubic inches
Engine Type
Single cylinder, four-stroke
Bore x Stroke (in,)
3.0 x 2.5 inches
Bore x Stroke (mm)
75.0 x 63.0 mm
CO2
74.5 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel System
Injection. Port injection
Emissions
Euro 5
Engine Lubrication
Wet sump, chain-driven lobe pump
Fuel Consumption
3.21 litres/100 km (31.2 km/l or 73.28 mpg)
Ignition
CDI
Starter
Electric
Valve System
4
Clutch
Automatic dry centrifugal clutch with vibration dampers
Final Drive
Belt (final drive)
Gearbox
Automatic
Frame Type
Sheet steel shell with welded structural reinforcements
Suspension - Front
Single arm, dual chamber hydraulic shock absorber with coaxial spring
Suspension - Rear
Two dual effect shock absorbers with adjustable preload
Instrumentation
Analog
Lighting system
LED lights
Brakes - Front
Single disc. ABS. Hydraulic.
Brakes - Rear
Single disc. ABS. Hydraulic.
Tyres - Front
120/70-12
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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