2021 Vespa GTS 300 Specifications

Name: 2021 Vespa GTS 300
Brand: Vespa

Scooter • Specs last verified 13 July 2026

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2021 Vespa GTS 300 Overview

Vespa GTS 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 25 Nm @ 5250 Revolutions of torque. On the road, the 2021 GTS 300 tips the scales at 158 kg, carries an 8.50-litre fuel tank, offers a seat height of 790 mm and spans a 1370 mm wheelbase. The full 2021 Vespa GTS 300 spec sheet below covers every technical detail, from suspension travel to tyre sizes.

2021 Vespa GTS 300 compared with other bikes in the Scooter category

We checked the recorded figures for the 2021 Vespa GTS 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 199 of the other 1109 bikes in the Scooter category have a larger engine displacement than the 278 cc of the GTS 300.
With 25 Nm, the GTS 300 has the joint 186th highest torque of 796 bikes in the Scooter category, 25% above the category average of 20 Nm.
Seat height of 790 mm is taller than that of 586 of the other 928 bikes in the Scooter category.
Narrowing the field to the 413 models within five model years of it, the engine displacement of 278 cc is larger than that of 303 of the other 412.

Versus the 2017 model

Compared with the 2017 model, peak torque increased from 22.3 Nm to 25 Nm (+2.7 Nm). Seat height is unchanged.

2021 GTS 300 - Pros & Cons

Strengths

Fuel injection: Fuel injection means consistent cold starts and clean throttle response without the fussiness of a carbureted setup.
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.
ABS fitted: ABS comes fitted from the factory - one less thing to worry about in a sudden stop on a slippery surface.
Low-maintenance final drive: Running a belt final drive cuts out the regular chain cleaning and tensioning that most bikes need.

Considerations

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 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 300's suspension runs Single arm with helical spring and hydraulic shock absorber at the front. The rear uses Double hydraulic shock absorber with helical spring with preload adjustable in 4 positions. Fork-seal condition and rear linkage play are the two things worth checking before buying used.

Final drive maintenance

The GTS 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 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 300 - Buying & Maintenance Guide

What to check before buying

Before handing over money for a used 2021 Vespa GTS 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 300 should catch quickly and settle into a smooth idle.

Oil and filter changes

Nothing protects the GTS 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 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 300 - Frequently Asked Questions

What engine does the 2021 Vespa GTS 300 have?

The 2021 Vespa GTS 300 uses a Single cylinder, four-stroke engine with 278 cc of displacement.

How much does the 2021 Vespa GTS 300 weigh?

The 2021 Vespa GTS 300 weighs 158 kg. This is the manufacturer's dry figure.

How much torque does the 2021 Vespa GTS 300 produce?

The 2021 Vespa GTS 300 produces 25 Nm @ 5250 Revolutions of torque.

What is the fuel tank capacity of the 2021 Vespa GTS 300?

The 2021 Vespa GTS 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 300 suitable for shorter riders?

The 2021 Vespa GTS 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 300 have?

The 2021 Vespa GTS 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 300 use?

The front tyre size on the 2021 Vespa GTS 300 is 120/70-12.

Vespa GTS 300 Spec Evolution

The Vespa GTS 300 was produced across 8 model years (2011-2023). 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	2011	2012	2015	2016	2017	2021	2022	2023
Engine Detail	-	-	Quasar engine	Quasar engine	Quasar engine	-	Catalysed HPE engine	Catalysed HPE engine
Fuel Capacity	9.20 litres / 2.43 gallons	9.20 litres / 2.43 gallons	9.08 litres / 2.40 gallons	9.08 litres / 2.40 gallons	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
Displacement (cc)	278.00 cc	278.00 cc	-	-	-	278.0 cc	278.0 cc	278.0 cc
Comments	-	4W/2WD. Automatic Transmission with Hi/Lo Range and Reverse. Slip Limited Front Differential. DC 12V 10A 120W electric outlet. Made in Taiwan.	-	-	-	Traction control. USB socket.	Traction control. USB socket.	Traction control. ASR. USB socket.
CO2	80.7 CO	81.4 CO	78.0 CO2 g/km. (CO2 - Carbon dioxide emission)	78.0 CO2 g/km. (CO2 - Carbon dioxide emission)	78.0 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)
Brakes - Rear Diameter (mm)	220 mm	200 mm	220 mm	220 mm	220 mm	-	-	-
Brakes - Rear Diameter (in.)	8.7 inches	7.9 inches	8.7 inches	8.7 inches	8.7 inches	-	-	-
Brakes - Front Diameter (mm)	220 mm	200 mm	220 mm	220 mm	220 mm	-	-	-

Key Specifications

Engine

Single cylinder, four-stroke

Power

Not recorded

Torque

25.0 Nm (2.5 kgf-m or 18.4 ft.lbs) @ 5250 Revolutions

Top Speed

Not recorded

Weight

158 kg / 348.3 lbs

Fuel Capacity

8.50 litres / 2.25 US gallons

Full 2021 Vespa GTS 300 Specifications

Comments Traction control. USB socket.

Colours Dark Blue, Light Green, Grey, Orange

Warranty 2 years, unlimited mileage

Storage Underseat storage

Seat Height 790 mm / 31.1 in.

Wheelbase 1370 mm / 53.9 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

Max Torque 25.0 Nm (2.5 kgf-m or 18.4 ft.lbs) @ 5250 Revolutions

Power-to-Weight Ratio 0.1506 HP/kg

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)

Displacement (cc) 278.0 cc

Displacement (ci) 16.96 cubic inches

Engine Type Single cylinder, four-stroke

Fuel System 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 with helical spring and hydraulic shock absorber

Suspension - Rear Double hydraulic shock absorber with helical spring with preload adjustable in 4 positions

Brakes - Front Single disc. ABS. Hydraulic.

Brakes - Rear Single disc. ABS. Hydraulic.

Rims Alloy rims

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.