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Sportbikes

2018KTM RC 125

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The 2018 KTM RC 125 is an accessible sportbike designed for entry-level riders and commuters seeking lightweight agility and modern styling. Known for its responsive handling, sharp aesthetics, and affordable performance, it combines a nimble chassis with essential features like ABS and electric starting, making it ideal for urban riding and new motorcycle enthusiasts.

Capacity
124.7 ccm
Engine
Single single, four-stroke
Gearbox
6-speed
Dry weight
135.0 kg
Seat height
820 mm
Power
15.0 HP (10.9 kW)

What’s new for the 2018 KTM RC 125

vs the 2017
Spec20172018
Engine capacity 124.70 ccm (7.61 cubic inches) 124.7 ccm (7.61 cubic inches)
Power 15.00 HP (10.9 kW) 15.0 HP (10.9 kW)
Torque 12.00 Nm (1.2 kgf-m or 8.9 ft.lbs) 12.0 Nm (1.2 kgf-m or 8.9 ft.lbs)
Fuel capacity 10.00 litres (2.64 gallons) 10.00 litres (2.64 US gallons)
Wheelbase 1,340 mm (52.8 inches) 1340 mm (52.8 inches)
Other years 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 23Agility 81Comfort 35Off-road 4Touring 22Road manners 72
Off-road & trail4%
Cornering80%
City riding82%
Daily riding75%
Touring15%
Two-up20%
Track55%
Best for
A pint-sized sport machine for spirited canyon carving, commuting and track-day schooling, teaching real sportbike technique on low power.
Built for
Energetic, revvy and razor-sharp; a proper baby superbike that rewards momentum and precise lines rather than brute power.
Not ideal for
Not for riders wanting highway speed, two-up touring, long-distance comfort or any off-road use.

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 820mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2018 KTM RC 125, with a cramped knee angle of around 70 degrees and a forward-leaning 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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Full specifications

Engine
Capacity
124.7 ccm
Power
15.0 HP (10.9 kW)
Torque
12.0 Nm (1.2 kgf-m)
Engine type
Single single, four-stroke
Power/weight ratio
0.1111 HP/kg
Bore x stroke
58.0 x 47.2 mm
Compression
14.5:1
Cooling system
Liquid
Fuel system
Injection
Starting
Electric
Ignition
Bosch EMS
Valves per cylinder
4
Lubrication system
Wet sump
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet multi-disc clutch, mechanically actuated
Dimensions & weight
Wheelbase
1340 mm
Seat height
820 mm
Dry weight
135.0 kg
Fuel capacity
10.00 litres
Ground clearance
179 mm
Chassis & suspension
Frame
Steel trellis frame, powder coated
Front suspension
WP upside-down Ø 43 mm
Rear suspension
WP monoshock
Front wheel travel
125 mm
Rear wheel travel
150 mm
Rake (fork angle)
23.5°
Brakes & wheels
Front brakes
Single disc. ABS. Four-piston calipers.
Front brakes diameter
300 mm
Rear brakes
Single disc. ABS. Floating disc. Single-piston caliper.
Rear brakes diameter
230 mm
Front tyre
110/90-R17
Rear tyre
150/70-R17
Other
Color options
White/grey/orange

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 201420172018202020232026
Capacity 124.70 ccm (7.61 cubic inches) 124.70 ccm (7.61 cubic inches) 124.70 ccm (7.61 cubic inches) 125.0 ccm (7.63 cubic inches) 125.0 ccm (7.63 cubic inches) 125.0 ccm (7.63 cubic inches)
Dry weight 135.0 kg (297.6 pounds) 135.0 kg (297.6 pounds) 135.0 kg (297.6 pounds) 139.0 kg (306.4 pounds) 147.0 kg (324.1 pounds) 147.0 kg (324.1 pounds)
Seat height 820 mm (32.3 inches) 820 mm (32.3 inches) 820 mm (32.3 inches) 820 mm (32.3 inches) 824 mm (32.4 inches) 824 mm (32.4 inches)
Fuel capacity 10.00 litres (2.64 gallons) 10.00 litres (2.64 gallons) 10.00 litres (2.64 gallons) 9.50 litres (2.51 US gallons) 13.70 litres (3.62 US gallons) 13.70 litres (3.62 US gallons)
Color options Black/orange White/grey/orange White/grey/orange White/Black/Orange White/Orange, Orange/Black White/Orange, Orange/Black

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

Rider Reviews

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MotorcycleDB Review

The 2018 KTM RC 125 is a sleek and stylish entry-level motorcycle that offers excellent performance and handling. With a powerful 125cc engine, this bike is perfect for beginners or experienced riders looking for a nimble and agile machine. The KTM RC 125 features a sporty design, lightweight chassis, and top-notch suspension, making it a great choice for those looking for a fun and exciting ride. Whether you're zipping through city streets or carving up twisty backroads, the KTM RC 125 delivers a thrilling and enjoyable riding experience.

Overall, the 2018 KTM RC 125 is a fantastic option for anyone in the market for a small displacement motorcycle. Its powerful engine, sporty design, and exceptional handling make it a standout choice in the entry-level sportbike category. With its lightweight and agile nature, the KTM RC 125 is a blast to ride and is sure to put a smile on the face of any rider. Whether you're a beginner looking for your first bike or an experienced rider in need of a fun and capable machine, the 2018 KTM RC 125 is definitely worth considering.

Common questions

What is the engine size of the KTM RC 125?

The 2018 KTM RC 125 has a Capacity of 124.7 ccm (7.61 cubic inches).

What engine power does the KTM RC 125 have?

The 2018 KTM RC 125 has a Power of 15.0 HP (10.9 kW).

How many gears does the KTM RC 125 have?

The 2018 KTM RC 125 has a Gearbox of 6-speed.

What is the torque of the KTM RC 125?

The 2018 KTM RC 125 has a Torque of 12.0 Nm (1.2 kgf-m or 8.9 ft.lbs).

How much does the KTM RC 125 weigh?

The 2018 KTM RC 125 has a Dry weight of 135.0 kg (297.6 pounds).

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