The 2026 Suzuki GSX-R125 is an entry-level sport bike perfect for beginner and younger riders seeking affordable performance. Its liquid-cooled 124cc four-stroke engine delivers 15 horsepower with responsive handling, making it ideal for learning sportbike fundamentals. Known for its reliable Japanese engineering and nimble character, it excels in urban riding and track day beginners.
The 2026 KTM RC 125 is a fully faired sports bike for learners on a 125 licence. Its liquid-cooled 124.7cc single makes 15 hp and 12 Nm through a six-speed gearbox. ABS and a windscreen are standard, with an 824 mm seat, a dry weight of 147 kg and a 13.7-litre tank.
Both are sport bikes, so this is a like-for-like choice.
2026 Suzuki GSX-R125: Best suited to commuting, learning, and short fun rides around town rather than any serious performance riding.
2026 KTM RC 125: A pint-sized sport machine for spirited canyon carving, commuting and track-day schooling, teaching real sportbike technique on low power.
Verdict: Choose the 2026 Suzuki GSX-R125 if you want a lower seat. Choose the 2026 KTM RC 125 if you want a bigger tank. Check the full table below for every figure, and the size comparison for fit.
| Specification | 2026 Suzuki GSX-R125 | 2026 KTM RC 125 |
|---|---|---|
| Other | ||
| Category | Sport | Sport |
| Color Options | Pearl Brilliant White/Metallic Triton Blue, Titan Black/ Solid Black, Metallic Triton Blue, Titan Black | White/Orange, Orange/Black |
| Comments | Keyless. Small windscreen. | Windscreen. |
| Engine | ||
| Capacity: | 124.0 ccm (7.57 cubic inches) | 124.7 ccm (7.61 cubic inches) |
| Engine Type | Single, four-stroke | Single, four-stroke |
| Fuel Consumption | ✓2.00 litres/100 km (50.0 km/l or 117.61 mpg) | 2.40 litres/100 km (41.7 km/l or 98.01 mpg) |
| Bore x Stroke | 62.0 x 41.2 mm (2.4 x 1.6 inches) | 58.0 x 47.2 mm (2.3 x 1.9 inches) |
| Compression | 11.0:1 | 14.5:1 |
| Cooling System | Liquid | Liquid |
| Fuel System | Injection | Injection |
| Starting | Electric | Electric |
| Ignition | Electric | Bosch EMS |
| Lubrication System | Wet sump | Wet sump |
| CO2 Emissions | - | 56 CO2 g/km |
| Valves Per Cylinder | - | 4 |
| Performance | ||
| Power | 14.8 HP (10.9 kW) @ 10500 RPM | ✓15.0 HP (11.0 kW) |
| Torque | 11.0 Nm (1.1 kgf-m or 8.1 ft.lbs) @ 8000 RPM | ✓12.0 Nm (1.2 kgf-m or 8.9 ft.lbs) |
| Power/Weight Ratio | 0.1080 HP/kg (wet) | 0.1020 HP/kg (dry) |
| Top Speed | 115.9 km/h (72.0 mph) | - |
| Transmission | ||
| Gearbox | 6-speed | 6-speed |
| Transmission Type | Manual | Manual |
| Final Drive | Chain | Chain |
| Clutch | Wet, multi-disc | Wet multi-disc clutch, mechanically actuated |
| Brakes & wheels | ||
| Front Brakes | Single disc. Petal disc. ABS | Single disc. ABS. Four-piston radial fixed calliper. |
| Front Brakes Diameter | 290 mm (11.4 inches) | 320 mm (12.6 inches) |
| Rear Brakes | Single disc. Petal disk. ABS. | Single disc. ABS. Single-piston floating calliper. |
| ABS | Yes | Yes |
| Front Tyre | 90/80-17 | 110/90-R17 |
| Rear Tyre | 130/70-17 | 150/70-R17 |
| Rear Brakes Diameter | - | 230 mm (9.1 inches) |
| Dimensions & weight | ||
| Wheelbase | 1300 mm (51.2 inches) | 1340 mm (52.8 inches) |
| Overall Length | 2000 mm (78.7 inches) | - |
| Overall Width | 700 mm (27.6 inches) | - |
| Overall Height | 1070 mm (42.1 inches) | - |
| Seat Height | ✓785 mm (30.9 inches) | 824 mm (32.4 inches) |
| Wet Weight | 137.0 kg (302.0 pounds) | - |
| Fuel Capacity | 11.00 litres (2.91 US gallons) | ✓13.70 litres (3.62 US gallons) |
| Dry weight | - | 147.0 kg (324.1 pounds) |
| Chassis & suspension | ||
| Front Suspension | Telescopic, coil spring, oil damped | WP APEX 43 |
| Rear Suspension | Link type, coil spring, oil damped | WP APEX - Monoshock |
| Ground Clearance | 155 mm (6.1 inches) | 158 mm (6.2 inches) |
| Frame | - | Steel trellis, powder coated |
| Front Wheel Travel | - | 120 mm (4.7 inches) |
| Rear Wheel Travel | - | 150 mm (5.9 inches) |
| Rake (fork angle) | - | 23.5° |
"Best" (✓) reflects that single spec only, not overall suitability - a bike can win on paper and still be the wrong choice for you. Ties are all marked; specs with no clear better/worse direction (e.g. displacement, wheel size) are never marked, only tinted where bikes differ.
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This tool puts up to four motorcycles side by side across their full specification sheets, drawn from a database of 43,000+ models and 1.60M+ individual specifications. Wherever a spec has a clear "better" direction - more power, less weight - the strongest figure in that row is highlighted automatically.
Pick a make, model and year for each bike; the model and year lists update to match what you've selected. Two bikes are enough - use "Add another bike" for a third or fourth. Comparisons work across model years too, so you can compare a bike against its own earlier generation. Once you're happy with the lineup, use "Copy share link" to send it to someone else.
Specs are pulled from the same categories used throughout the site: engine and transmission (capacity, power, torque, gearbox), physical measures (weight, seat height, fuel and tank capacity), frame and dimensions, speed and acceleration, and brakes, suspension, frame and wheels (including tyres) - plus general information and maintenance data where it's on record for a bike.
A highlighted cell means one bike has the clearly better raw number for that spec - more power, less weight, and so on. Fields where "better" genuinely depends on the rider - seat height above all - are deliberately never highlighted: a lower seat isn't automatically the right choice, it's a fit question only you can answer. Winning a row also isn't the same as winning the comparison - a bike can lead on paper in half the rows and still be the wrong bike for you.
Yes - the tool doesn't restrict what you compare, though a highlighted spec means less when the two bikes aren't really doing the same job.
It shows as "-" and is never highlighted as a winner - a missing figure never beats one that's actually reported, and never blocks the rest of the row.
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