CBT.BIKE/Bikes/Suzuki/GSX-S125

Naked // Manual // 2024

Suzuki
GSX-S125

The lightest 125 you can buy.

Power

15 bhp

Weight

134kg

Top Speed

80 mph

From New

£3,899

At 134kg wet, the GSX-S125 is the lightest learner-legal naked you can buy in the UK. That weight advantage translates to genuinely sharp handling and a fuel economy figure that surprises everyone.

Who it's for

Smaller and lighter riders who want a proper sportbike feel without the supersport ergonomics. Excellent for nervous first-timers.

Pros

  • Lightest 125 naked on sale
  • Excellent fuel economy
  • Suzuki reliability
  • Sharp handling

Cons

  • Suzuki UK dealer network smaller than Honda or Yamaha
  • Styling polarising
  • Limited factory accessories

Full Specifications

Engine
Single-cylinder, 4-stroke, DOHC, 4-valve, liquid-cooled
Displacement
124cc
Power
15 bhp @ 10,000 rpm
Torque
8.1 lb-ft @ 8,000 rpm
Top speed
80 mph
Fuel economy
117 mpg
Fuel capacity
11 litres
Weight
134 kg (wet)
Seat height
785 mm
Transmission
6-speed manual
Brakes
Front: 290mm disc. Rear: 187mm disc.
Suspension
Front: telescopic forks. Rear: monoshock.
Wheels & tyres
17" cast aluminium
ABS
Dual-channel ABS
Service interval
7,500 miles / 12 months
Warranty
2 years unlimited mileage
Insurance group
Group 10
Available colours
Triton Blue, Glass Sparkle Black, Brilliant White
Price new
£3,899
Price used
£2,500 – £3,200
CBT legal?
Yes
Full-licence keepable?
No — restricted to learners

Best for

  • Lighter riders
  • Nervous first-timers
  • Long commutes

Trivia

  • Shares its engine with the now-discontinued GSX-R125 faired sibling.
  • Won UK Best Learner Bike at MCN Awards 2018 and 2019.
  • Built in Indonesia.

Don't have your CBT yet?

You need a valid DL196 certificate before you can legally ride the GSX-S125 on the road.

Find CBT training →