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Naked Motorcycles

2021Suzuki GSX-S125

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The 2021 Suzuki GSX-S125 is an entry-level naked bike designed for new riders and commuters seeking an affordable, reliable machine. Its lightweight 124cc liquid-cooled engine delivers efficient performance with excellent fuel economy of over 52 km/l, making it ideal for urban riding and daily transportation. Known for its approachable ergonomics and low running costs, the GSX-S125 represents excellent value in the beginner-friendly motorcycle segment.

Capacity
124.0 ccm
Engine
Single, four-stroke
Gearbox
6-speed
Wet weight
134.0 kg
Seat height
785 mm
Power
15.0 HP (10.9 kW) @ 10000 RPM
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2021 Suzuki GSX-S125

vs the 2020
Spec20202021
Power 14.8 HP (10.8 kW) @ 10000 RPM 15.0 HP (10.9 kW) @ 10000 RPM
Other years 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 17Agility 82Comfort 55Off-road 10Touring 25Road manners 65
Off-road & trail10%
Cornering60%
City riding90%
Daily riding80%
Touring25%
Two-up30%
Track20%
Best for
Built primarily for commuting and urban riding rather than performance or long-distance travel.
Built for
A friendly, approachable naked bike with playful styling but modest performance, prioritizing efficiency and ease of use over excitement.
Not ideal for
Not suitable for experienced riders seeking high speed, highway touring comfort, or off-road capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 785mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2021 Suzuki GSX-S125, with a moderate knee angle of around 115 degrees and a slightly forward riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Range and running costs

Worked out in your browser - nothing is sent to us

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine
Capacity
124.0 ccm
Power
15.0 HP (10.9 kW) @ 10000 RPM
CO2 Emissions
45 CO2 g/km
Torque
11.5 Nm (1.2 kgf-m) @ 8000 RPM
Engine type
Single, four-stroke
Fuel consumption
1.90 litres/100 km (52.6 km/l)
Power/weight ratio
0.1119 HP/kg (wet)
Bore x stroke
62.0 x 41.2 mm
Compression
11.0:1
Cooling system
Liquid
Fuel system
Injection
Starting
Electric
Ignition
Electric
Lubrication system
Wet sump
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet, multi-disc
Dimensions & weight
Wheelbase
1300 mm
Overall length
2000 mm
Overall width
745 mm
Overall height
1070 mm
Seat height
785 mm
Wet weight
134.0 kg
Fuel capacity
11.00 litres
Ground clearance
160 mm
Dry weight
Not on record - add it
Chassis & suspension
Front suspension
Telescopic, coil spring, oil damped
Rear suspension
Link type, coil spring, oil damped
Brakes & wheels
Front brakes
Single disc. Petal
Front brakes diameter
290 mm
Rear brakes
Single disc. Petal
Front tyre
90/80-M17
Rear tyre
130/70-M17
Other
Color options
Titan Black
Warranty
24

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 201720192021202220242026
Capacity 124 cc 124 cc 124 cc 124 cc 124 cc 124 cc
Seat height 785 mm 785 mm 785 mm 785 mm 785 mm 785 mm
Fuel capacity 11 L 11 L 11 L 11 L 11 L 11 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB

The 2021 Suzuki GSX-S125 is a great choice for those looking for a reliable and efficient motorcycle. Its sleek design and powerful engine make it a standout in its class. The bike's lightweight and nimble handling make it perfect for navigating through city streets or taking on twisty backroads. With its fuel-efficient engine and comfortable riding position, the GSX-S125 is a great option for beginners and experienced riders alike.

Overall, the 2021 Suzuki GSX-S125 offers a great combination of performance, style, and value. Its impressive fuel economy and responsive handling make it a practical choice for daily commuting, while its sporty design and advanced features appeal to riders looking for a fun and exhilarating ride. Whether you're a new rider or a seasoned motorcyclist, the GSX-S125 is worth considering for its reliability and overall riding experience.

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Common questions

What is the engine size of the Suzuki GSX-S125?

The 2021 Suzuki GSX-S125 has a Capacity of 124.0 ccm (7.57 cubic inches).

What engine power does the Suzuki GSX-S125 have?

The 2021 Suzuki GSX-S125 has a Power of 15.0 HP (10.9 kW) @ 10000 RPM.

How many gears does the Suzuki GSX-S125 have?

The 2021 Suzuki GSX-S125 has a Gearbox of 6-speed.

What is the torque of the Suzuki GSX-S125?

The 2021 Suzuki GSX-S125 has a Torque of 11.5 Nm (1.2 kgf-m or 8.5 ft.lbs) @ 8000 RPM.

How much does the Suzuki GSX-S125 weigh?

The 2021 Suzuki GSX-S125 has a Wet weight of 134.0 kg (295.4 pounds).

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