Suzuki Gsx-s125
The Suzuki Gsx-s125 has a top speed of 110 km/h (estimated; note: electronically limited to comply with A1 category regulations), produces 15 hp and weighs 134 kg. Motoryk rates it 7.5/10.
The Suzuki GSX-S125 was introduced in 2017 as part of Suzuki's effort to capture the A1 licence category in Europe, targeting new and young riders with a sporty naked streetfighter aesthetic. It shares its platform and 124cc engine with the GSX-R125, offering the same powertrain in a more upright, street-focused riding position. The model proved popular in European markets due to its aggressive GSX-S lineage styling, accessible power, and fuel efficiency, keeping the Suzuki brand competitive in the growing 125cc segment.
15 hp
Power
11.5 Nm
Torque
134 kg
Weight
110 km/h (estimated; note: electronically limited to comply with A1 category regulations)
Top Speed
2.5 L/100km or approximately 40 km/L (typical real-world average)
Fuel
Naked
Body
Video Review
What Buyers Should Know
Proven Reliable Engine
The GSX-S125 uses a fuel-injected 124cc single-cylinder engine derived from Suzuki's GSX-R lineage, known for low maintenance demands and strong longevity with regular oil changes.
Watch the Cam Chain
Some owners report cam chain tensioner noise appearing after higher mileage — listen for a rattling sound at startup, as early attention prevents costly engine damage.
Strong Resale Value
Its sporty GSX-R-inspired styling and A1 licence compliance keep demand high among new riders, helping it retain resale value better than many competitors in the 125cc class.
Generations & Specs by Year
Initial launch with 124cc single-cylinder engine, ABS option, LED lighting, naked street fighter styling.
Used Buyer Review
"The sharpest 125 commuter you can buy used right now."
$2,500-$4,000 usedLook, the GSX-S125 is Suzuki doing a proper job on a small bike rather than just bolting a logo onto someone else's chassis. The 125cc single punches out about 15hp, which sounds laughable until you're carving through city traffic while your mate on a bigger bike is stuck three cars back. Build quality genuinely punches above its class — the bodywork feels solid, the switchgear has that satisfying click, and the brakes are competent for the power involved. It doesn't embarrass itself. Used, you're looking at bikes that are typically well-maintained because most owners are either new riders who babied it or commuters who serviced it regularly. Check the chain and sprockets first — urban riding chews through them. Also inspect the exhaust headers for rust; it's a known weak spot on earlier examples. The fuel injection makes cold starts painless and reliability is genuinely strong. Don't buy this expecting thrills beyond the class. Do buy it expecting a bike that'll actually start every morning and not humiliate you mechanically.
Top 10 Accessories
Curated picks for the Suzuki Gsx-s125 — owned, ridden, recommended.
Common Problems
🔥 1 CRITICALBattery voltage at idle, dim lights, hard starting
Rough idle, hesitation, poor low-rpm response
Rattling on cold start, listen at engine top end
Oil residue on fork tubes, soft front suspension
✅Pre-Purchase Checklist
Generally solid, neglect causes most issues
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Suzuki Gsx-s125
Bmw G 310 R
Ktm Duke 125
Honda Cb125r
Benelli Tnt 135
Kawasaki Z125 Pro
Compare Suzuki Gsx-s125 Side-by-Side
compare_arrowsSpecs, power, weight & buyer verdict — head-to-head with the bikes most often cross-shopped.
Suzuki Gsx-s125 vs Bmw G 310 R
Specs · Power · Buyer verdict
Suzuki Gsx-s125 vs Ktm Duke 125
Specs · Power · Buyer verdict
Suzuki Gsx-s125 vs Honda Cb125r
Specs · Power · Buyer verdict
Suzuki Gsx-s125 vs Benelli Tnt 135
Specs · Power · Buyer verdict
Suzuki Gsx-s125 vs Kawasaki Z125 Pro
Specs · Power · Buyer verdict
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Discussion
Frequently Asked Questions
What are common problems with the Suzuki Gsx-s125? +
Stator/charging system failure: Battery voltage at idle, dim lights, hard starting (serious) | Throttle body clogging from ethanol fuel: Rough idle, hesitation, poor low-rpm response (moderate) | Cam chain tensioner noise/wear: Rattling on cold start, listen at engine top end (moderate)
Is the Suzuki Gsx-s125 a good motorcycle? +
The sharpest 125 commuter you can buy used right now. Rating: 7.5/10. Best for: New riders wanting a dependable urban commuter. Avoid if: You regularly need sustained motorway speeds.
What is the horsepower of the Suzuki Gsx-s125? +
The Suzuki Gsx-s125 produces 15 hp @ 10,000 rpm (note: restricted to 11 kW / ~15 hp for A1 licence compliance), with 11.5 Nm @ 8,000 rpm of torque. Top speed: 110 km/h (estimated; note: electronically limited to comply with A1 category regulations).
Is the Suzuki Gsx-s125 good for beginners? +
Yes — the Suzuki Gsx-s125 is a reasonable choice for new riders (15 hp is manageable), weighing 134 kg. New riders wanting a dependable urban commuter
Is the Suzuki Gsx-s125 reliable? +
Owners report 1 critical issue to watch for on the Suzuki Gsx-s125, notably: Stator/charging system failure (Battery voltage at idle, dim lights, hard starting). Buy with a pre-purchase inspection.
Is the Suzuki Gsx-s125 good for daily use? +
New riders wanting a dependable urban commuter Fuel: 2.5 L/100km or approximately 40 km/L (typical real-world average).
How fast is the Suzuki Gsx-s125? +
The Suzuki Gsx-s125 reaches a top speed of 110 km/h (estimated; note: electronically limited to comply with A1 category regulations), producing 15 hp at 134 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.
What gear should I buy for a Suzuki Gsx-s125? +
Motoryk has curated a Top 10 gear list specifically for the Suzuki Gsx-s125, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/suzuki/gsx-s125/top10. Each pick is matched to this bike's spec.
