Showing posts with label Motorcycles. Show all posts
Showing posts with label Motorcycles. Show all posts

Honda NSR 125: History, Specifications, and the Enduring Charm of a Legendary Two-Stroke Sportbike

The Honda NSR 125 stands as one of the most influential small-displacement sport motorcycles in the history of lightweight performance machines, particularly within the European market. It was never conceived merely as a daily commuter, but rather as an entry point into the world of high-performance riding for young enthusiasts. From its earliest appearance, the NSR 125 carried a strong and unmistakable identity as a true sport motorcycle, designed with a serious performance philosophy rather than serving as a purely cosmetic imitation of larger superbikes.

The emergence of the Honda NSR 125 cannot be separated from the licensing regulations enforced in many European countries, which restricted engine capacity for novice riders. Honda transformed this limitation into an opportunity by introducing a 125 cc motorcycle that delivered the spirit and character of a Grand Prix race machine. The racing DNA that Honda had refined on world championship circuits was distilled into the NSR 125 through its design language, engineering choices, and the aggressive, responsive nature of its engine.

Throughout its production life, the Honda NSR 125 evolved through several distinct phases that reflected technological progress and shifting sportbike design trends of their respective eras. The earliest generation, produced from the late 1980s into the early 1990s, embodied the raw and uncompromising character of two-stroke motorcycles of that period. Its design was relatively simple and functional, while its technology remained straightforward. The primary focus lay in minimizing weight, maximizing throttle response, and delivering a riding sensation that echoed the intensity of late-1980s racing machines.

During the mid-1990s, Honda introduced significant refinements to the NSR 125. This phase saw the adoption of more advanced ignition and engine management systems, including PGM technology on certain variants. These improvements resulted in smoother power delivery without sacrificing performance, enhanced stability in handling, and fairing designs that increasingly resembled Honda’s Grand Prix motorcycles of the 1990s. This generation became the most widely recognized and sought-after among enthusiasts, balancing usability with a strong racing character.

In its final production phase in the early 2000s, the Honda NSR 125 reached its most modern and visually refined form. The design followed the sharp, purposeful styling trends of early-millennium sport motorcycles, with more pronounced lines and mature proportions. Despite these advancements, the tightening emissions regulations across Europe gradually signaled the end of the two-stroke era. As a result, Honda ultimately discontinued the NSR 125, marking the conclusion of a remarkable chapter in lightweight sportbike history.

Visually, the Honda NSR 125 presents itself as a pure sport motorcycle. Full fairings with sharp, aerodynamic lines envelop the body, creating an impression of speed even at rest. The fuel tank is shaped to support a committed, forward-leaning riding position, while the slim tail section reinforces its racing-oriented stance. These design elements combine to produce a balanced and premium appearance, regardless of the motorcycle’s modest engine capacity.

From a structural standpoint, the Honda NSR 125 employs a lightweight yet rigid aluminum perimeter frame. At the time of its introduction, this type of chassis was typically reserved for larger sport motorcycles, making its application on a 125 cc machine particularly noteworthy. The frame contributes significantly to the bike’s stability at higher speeds and its precise response during cornering, instilling confidence in the rider.

The engine remains the defining feature of the Honda NSR 125. It is powered by a liquid-cooled, single-cylinder, two-stroke engine with a displacement of approximately 124 cc. The inherent characteristics of a two-stroke engine grant the NSR 125 rapid throttle response and lively power delivery. Engine revs rise quickly, producing an intense and emotionally engaging riding experience that has become increasingly rare in modern motorcycles.

To support consistent performance, the NSR 125 is equipped with a liquid-cooling system designed to maintain stable operating temperatures, particularly during sustained high-rev riding. The radiator is positioned strategically to ensure optimal airflow without compromising aerodynamic efficiency. This combination allows the motorcycle to perform reliably under demanding conditions.

Power is transmitted to the rear wheel through a six-speed manual transmission featuring closely spaced gear ratios. This setup enables riders to keep the engine within its optimal power band, whether accelerating hard or maintaining speed on open roads. The responsive clutch and precise gear changes further emphasize the motorcycle’s sport-focused character.

Suspension duties are handled by telescopic front forks and a rear monoshock system. The suspension is tuned to strike a balance between everyday usability and high-speed stability, ensuring comfort on public roads while maintaining composure during aggressive riding. The motorcycle’s relatively light weight enhances its agility and ease of control.

Braking performance is provided by disc brakes at both the front and rear wheels, delivering strong and consistent stopping power. This braking capability aligns well with the NSR 125’s performance-oriented nature, allowing riders to brake with confidence at higher speeds or in demanding traffic conditions.

In daily use, the Honda NSR 125 requires more attention than modern four-stroke motorcycles. Fuel consumption and the use of two-stroke oil are comparatively higher, and engine maintenance demands a degree of care and mechanical awareness. For many enthusiasts, however, these aspects are embraced as part of the authentic ownership experience of a classic two-stroke sportbike.

Culturally, the Honda NSR 125 occupies a special place among sport motorcycle enthusiasts. It is widely regarded as a symbol of the golden age of two-stroke machines, when engine sound, exhaust aroma, and raw performance defined the identity of sport motorcycling. Even today, the NSR 125 remains highly valued by collectors and riders who appreciate its historical significance and the visceral riding sensation it continues to offer.

In essence, the Honda NSR 125 represents far more than a simple 125 cc motorcycle. It embodies Honda’s philosophy of bringing race-proven technology to the road and stands as a lasting testament to a pivotal era in the evolution of sport motorcycles worldwide.

Image: https://www.motoplanete.us/honda/978/NSR-125-R-2001/contact.html

KSR Vertigo 50 4T (2017)


Specifications
2017 KSR Vertigo 50 4T
Dry weight 92.0 kg (202.8 pounds)
Power/weight ratio 0.0393 HP/kg
Overall height 1140 mm (44.9 inches)
Overall length 1895 mm (74.6 inches)
Overall width 720 mm (28.3 inches)
Wheelbase 1300 mm (51.2 inches)
Fuel capacity 5.50 litres (1.45 US gallons)
Frame type Steel
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.9 ccm (3.04 cubic inches)
Engine type Single cylinder, four-stroke
Power 3.6 HP (2.6 kW) @ 8500 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Vertigo 125 (2017)


Specifications
2017 KSR Vertigo 125
Dry weight 105.0 kg (231.5 pounds)
Power/weight ratio 0.0920 HP/kg
Overall height 1140 mm (44.9 inches)
Overall length 1895 mm (74.6 inches)
Overall width 720 mm (28.3 inches)
Wheelbase 1300 mm (51.2 inches)
Fuel capacity 5.50 litres (1.45 US gallons)
Frame type Steel
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Displacement 125.0 ccm (7.63 cubic inches)
Engine type Single cylinder, four-stroke
Power 9.7 HP (7.1 kW) @ 8000 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Toxic 50 (2017)


Specifications
2017 KSR Toxic 50
Overall height 1160 mm (45.7 inches)
Overall length 1740 mm (68.5 inches)
Overall width 690 mm (27.2 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 5.00 litres (1.32 US gallons)
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, two-stroke
Power 6.7 HP (4.9 kW) @ 6000 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Soho 150 (2017)


Specifications
2017 KSR Soho 150
Dry weight 130.0 kg (286.6 pounds)
Power/weight ratio 0.0990 HP/kg
Overall height 1315 mm (51.8 inches)
Overall length 2050 mm (80.7 inches)
Overall width 705 mm (27.8 inches)
Wheelbase 1320 mm (52.0 inches)
Fuel capacity 7.40 litres (1.96 US gallons)
Frame type Steel
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Single disc
Displacement 150.1 ccm (9.16 cubic inches)
Engine type Single cylinder, four-stroke
Power 12.9 HP (9.4 kW) @ 7500 RPM
Fuel system Carburettor
Cooling system Liquid
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Soho 125 (2017)


Specifications
2017 KSR Soho 125
Dry weight 130.0 kg (286.6 pounds)
Power/weight ratio 0.0918 HP/kg
Overall height 1315 mm (51.8 inches)
Overall length 2050 mm (80.7 inches)
Overall width 705 mm (27.8 inches)
Wheelbase 1320 mm (52.0 inches)
Fuel capacity 7.40 litres (1.96 US gallons)
Frame type Steel
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Displacement 125.0 ccm (7.63 cubic inches)
Engine type Single cylinder, four-stroke
Power 11.9 HP (8.7 kW) @ 8250 RPM
Fuel system Carburettor
Cooling system Liquid
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Sirion 50 4T (2017)


Specifications
2017 KSR Sirion 50 4T
Color options White, Red, Grey, Black
Starter Electric & kick
Dry weight 92.0 kg (202.8 pounds)
Power/weight ratio 0.0393 HP/kg
Overall height 1170 mm (46.1 inches)
Overall length 1840 mm (72.4 inches)
Overall width 690 mm (27.2 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 5.00 litres (1.32 US gallons)
Frame type Steel
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, four-stroke
Power 3.6 HP (2.6 kW) @ 8500 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Sirion 50 (2017)


Specifications
2017 KSR Sirion 50
Color options White, Red, Grey, Black
Starter Electric & kick
Dry weight 92.0 kg (202.8 pounds)
Power/weight ratio 0.0423 HP/kg
Overall height 1170 mm (46.1 inches)
Overall length 1840 mm (72.4 inches)
Overall width 690 mm (27.2 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 5.00 litres (1.32 US gallons)
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, two-stroke
Power 3.9 HP (2.8 kW) @ 5750 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Sirion 125 (2017)


Specifications
2017 KSR Sirion 125
Color options White, Red, Grey, Black
Starter Electric & kick
Dry weight 108.0 kg (238.1 pounds)
Power/weight ratio 0.0894 HP/kg
Overall height 1170 mm (46.1 inches)
Overall length 1840 mm (72.4 inches)
Overall width 690 mm (27.2 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 6.00 litres (1.59 US gallons)
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 125.0 ccm (7.63 cubic inches)
Engine type Single cylinder, four-stroke
Power 9.7 HP (7.1 kW) @ 8000 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Race 50 GT 4T (2017)


Specifications
2017 KSR Race 50 GT 4T
Color options Yellow, Red, Green
Starter Electric & kick
Overall height 1140 mm (44.9 inches)
Overall length 1820 mm (71.7 inches)
Overall width 695 mm (27.4 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 5.00 litres (1.32 US gallons)
Frame type Steel
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, four-stroke
Power 3.6 HP (2.6 kW) @ 8500 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Pandora 50 4T (2017)


Specifications
2017 KSR Pandora 50 4T
Overall height 1175 mm (46.3 inches)
Overall length 1820 mm (71.7 inches)
Overall width 695 mm (27.4 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 4.00 litres (1.06 US gallons)
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, four-stroke
Power 3.6 HP (2.6 kW) @ 5750 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Race 50 GT (2017)


Specifications
2017 KSR Race 50 GT
Overall height 1140 mm (44.9 inches)
Overall length 1820 mm (71.7 inches)
Overall width 695 mm (27.4 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 5.00 litres (1.32 US gallons)
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, two-stroke
Power 3.9 HP (2.8 kW) @ 5750 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Race 125 GT (2017)


Specifications
2017 KSR Race 125 GT
Dry weight 108.0 kg (238.1 pounds)
Power/weight ratio 0.0894 HP/kg
Overall height 1140 mm (44.9 inches)
Overall length 1820 mm (71.7 inches)
Overall width 695 mm (27.4 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 6.00 litres (1.59 US gallons)
Frame type Steel
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 125.0 ccm (7.63 cubic inches)
Engine type Single cylinder, four-stroke
Power 9.7 HP (7.1 kW) @ 8000 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Pandora 50 4T (2017)


Specifications
2017 KSR Pandora 50 4T
Overall height 1175 mm (46.3 inches)
Overall length 1820 mm (71.7 inches)
Overall width 695 mm (27.4 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 4.00 litres (1.06 US gallons)
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, four-stroke
Power 3.6 HP (2.6 kW) @ 5750 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Pandora 50 (2017)


Specifications
2017 KSR Pandora 50
Overall height 1175 mm (46.3 inches)
Overall length 1820 mm (71.7 inches)
Overall width 695 mm (27.4 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 4.00 litres (1.06 US gallons)
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, two-stroke
Power 3.4 HP (2.4 kW) @ 6000 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Onyx Pick-Up (2017)


Specifications
2017 KSR Onyx Pick-Up
Overall height 1140 mm (44.9 inches)
Overall length 1895 mm (74.6 inches)
Overall width 720 mm (28.3 inches)
Wheelbase 1300 mm (51.2 inches)
Fuel capacity 5.50 litres (1.45 US gallons)
Frame type Steel
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Displacement 49.9 ccm (3.04 cubic inches)
Engine type Single cylinder, four-stroke
Power 3.6 HP (2.6 kW) @ 8500 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Onyx 50 4T (2017)


Specifications
2017 KSR Onyx 50 4T
Dry weight 92.0 kg (202.8 pounds)
Power/weight ratio 0.0393 HP/kg
Overall height 1140 mm (44.9 inches)
Overall length 1895 mm (74.6 inches)
Overall width 720 mm (28.3 inches)
Wheelbase 1300 mm (51.2 inches)
Fuel capacity 5.50 litres (1.45 US gallons)
Frame type Steel
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.9 ccm (3.04 cubic inches)
Engine type Single cylinder, four-stroke
Power 3.6 HP (2.6 kW) @ 8500 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Onyx 50 (2017)


Specifications
2017 KSR Onyx 50
Dry weight 92.0 kg (202.8 pounds)
Power/weight ratio 0.0379 HP/kg
Overall height 1140 mm (44.9 inches)
Overall length 1895 mm (74.6 inches)
Overall width 720 mm (28.3 inches)
Wheelbase 1300 mm (51.2 inches)
Fuel capacity 5.50 litres (1.45 US gallons)
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, two-stroke
Power 3.5 HP (2.5 kW) @ 6500 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Jump 50 (2017)


Specifications
2017 KSR Jump 50
Color options White
Starter Electric & kick
Overall height 1150 mm (45.3 inches)
Overall length 1730 mm (68.1 inches)
Overall width 690 mm (27.2 inches)
Wheelbase 1280 mm (50.4 inches)
Fuel capacity 4.00 litres (1.06 US gallons)
Front suspension Telescopic fork
Rear suspension Monoshock
Front brakes Single disc
Rear brakes Expanding brake (drum brake)
Seat Dual seat
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, two-stroke
Power 3.0 HP (2.2 kW) @ 6500 RPM
Fuel system Carburettor
Cooling system Air
Gearbox Automatic
Transmission type Belt (final drive)
Driveline CVT

KSR Explorer Urano 750 EFI 4x4 (2017)


Specifications
2017 KSR Explorer Urano 750 EFI 4x4
Dry weight 326.0 kg (718.7 pounds)
Power/weight ratio 0.1674 HP/kg
Overall height 1245 mm (49.0 inches)
Overall length 2100 mm (82.7 inches)
Overall width 1246 mm (49.1 inches)
Ground clearance 300 mm (11.8 inches)
Wheelbase 1290 mm (50.8 inches)
Fuel capacity 23.00 litres (6.08 US gallons)
Front tire 26/8-14
Rear tire 26/10-14
Front brakes Double disc
Rear brakes Single disc
Wheels Aluminium rims. Maxxis Big Horn tyres
Displacement 730.5 ccm (44.58 cubic inches)
Engine type Single cylinder, four-stroke
Power 54.6 HP (39.8 kW) @ 6000 RPM
Torque 67.5 Nm (6.9 kgf-m or 49.8 ft.lbs) @ 5000 RPM
Fuel system Injection. Delphi
Fuel control Single Overhead Cams (SOHC)
Cooling system Liquid
Gearbox Automatic
Transmission type Belt (final drive)
Clutch CVT
Driveline Switchable 4x4

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