Yuki 125 RS
1977Off-road

Yuki 125 RS

Key specifications

Engine
124 cc
Power
17 HP
Fuel type
petrol
Fuel capacity
3.2 L
Transmission
6-speed
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 1977 KTM 125 RS: A Timeless Off-Road Classic Revving into the world of enduro motorcycles, the 1977 KTM 125 RS stands tall as an iconic representation of its era. Designed for the intrepid off-road adventurer, this lightweight and nimble machine quickly carved its niche among enthusiasts who sought performance without compromising on agility. With its striking orange and black aesthetics, the 125 RS not only turned heads but also delivered an exhilarating riding experience that is still fondly remembered by riders today. As KTM was establishing its reputation in the off-road motorcycle segment, the 125 RS played a pivotal role, boasting a blend of robust engineering and spirited performance that set the stage for the brand's future success. At the heart of the KTM 125 RS lies a spirited 124cc single-cylinder, two-stroke engine that punches well above its weight. Producing 17 horsepower at 7,500 RPM, this powerplant delivers an impressive top speed of 120 km/h (74.6 mph), making it a formidable contender on both trails and racing circuits. The bike’s compact dimensions and lightweight design, tipping the scales at just 111 kg (244.7 pounds) with fluids, ensure a responsive feel and easy maneuverability, allowing riders to navigate tight turns and rough terrains with confidence. The 6-speed gearbox, paired with a robust chain final drive, provides seamless gear shifts, catering to the varied demands of off-road riding while maintaining an exhilarating connection between rider and machine. The 1977 KTM 125 RS is equipped with thoughtful features that enhance its off-road capabilities. Its air-cooled engine and an impressive compression ratio of 11.8:1 contribute to a punchy throttle response, perfect for tackling challenging trails. The motorcycle’s stopping power is equally commendable, with both front and rear single disc brakes ensuring reliable deceleration in any situation. With a fuel capacity of 12 liters (3.17 gallons), the 125 RS strikes a balance between lightweight agility and adequate range for day-long escapades in the wilderness. The bike's design also emphasizes durability, allowing it to withstand the rigors of off-road riding while providing a comfortable and engaging experience for its riders. ***

Pros

    Cons

    • Lightweight and Agile: At just 111 kg, the 125 RS allows for nimble handling and easy maneuverability on tight trails.
    • Powerful Engine: The 124cc two-stroke engine delivers a thrilling 17 HP, offering impressive performance for both casual rides and competitive events.
    • Reliable Braking System: Equipped with single disc brakes on both the front and rear, the 125 RS provides excellent stopping power, enhancing rider confidence.
    • Limited Fuel Range: With a 12-liter fuel tank, longer rides may require more frequent stops for refueling, which can be inconvenient on extended journeys.
    • Two-Stroke Maintenance: The two-stroke engine requires more regular maintenance and attention compared to four-stroke counterparts, which may not appeal to all riders.
    • Comfort for Longer Rides: While great for off-road adventures, the minimalist design may not provide the comfort needed for longer rides on paved roads.

    Technical details

    Source specification data

    Make
    KTM
    Model
    125 RS
    Category
    Enduro-offroad
    Power
    17.00 HP (12.4 kW)) @ 7500 RPM
    Gearbox
    6-speed
    Top Speed
    120.0 km/h (74.6 mph)
    Bore X Stroke
    54.0 x 54.0 mm (2.1 x 2.1 inches)
    Compression
    11.8:1
    Displacement
    124.00 ccm (7.57 cubic inches)
    Cooling System
    Air
    Engine Details
    Single cylinder, two-stroke
    Transmission Type Final Drive
    Chain
    Fuel Capacity
    12.00 litres (3.17 gallons)
    Weight Incl Oil Gas Etc
    111.0 kg (244.7 pounds)
    Rear Tyre
    3.00-17
    Front Tyre
    2.75-17
    Rear Brakes
    Single disc
    Front Brakes
    Single disc