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Contents:

1. Introduction

2. Model overview

3. Monkey milestones

4. Technical specifications

Honda Monkey motorbike 2018 - Pearl Nebula Red/Ross White, parked

1. Introduction

The Honda Monkey bike is perhaps most widely known as a groovy icon of the 1970s, but it first saw the light of day in 1961. Originally developed as a 49cc child’s plaything for Tama Tech, an amusement park in Tokyo, it proved so popular that a road-going version was developed, which was initially exported to America and Europe in 1963, with a distinctive chrome tank, folding handlebars and 5-inch diameter rigidly-mounted wheels.

Its popularity was based on a cute, instantly-likable design, tiny dimensions and ultra light weight – which made it a whole load of fun around town. By 1969 its wheels had increased to 8-inch in diameter and from 1970 it gained even greater popularity, when the addition of quick-detach forks meant it would fit into the trunk of a small car.

Honda Monkey motorbike 2018, Pearl Nebula Red/Ross White - exterior detail

By 1978 – a point that marked the start of real prime time for the Monkey – the machine had been re-styled with a teardrop style fuel tank, and became hugely popular with legions of RV (Recreational Vehicle) drivers in need of convenient transport to use once they were parked up. And this is where and when the cheeky Monkey really cemented its place in millions of hearts; with its 3-speed gearbox and centrifugal clutch (which needed no ‘traditional’ motorcycle skill to operate) it gave thousands of riders their first experience of twisting the throttle on a powered two wheeler.

Because it was so much fun, and so easy to ride, it did more to sell the concept of motorcycles to a wider public than perhaps any other machine. With its chunky tyres, mini-‘ape’ style handlebars, miniscule fuel tank and big, squashy seat the Monkey look is unmistakably of its time, but – just like the affection in which it is held – also timeless.

2017 Monkey - 50th Anniversary (Japan)

2. Model overview

  • Styling, paint and chromed parts draw heavily on the original
  • 125cc air-cooled engine delivers 6.9kW power, 11Nm torque and 189 mpg
  • Steel frame, USD forks, twin rear shocks and 12-inch diameter tyres
  • Wet weight of 107kg, with wheelbase of 1155mm and 775mm seat height
  • All lighting is premium LED

After the modern-day success of the sharp-suited MSX125, which proved the desire for a funky, pocket-sized town run-around, it was time for the Monkey name to return, reborn and ready for life in the 21st century city.

Honda Monkey bike 2018 - Pearl Shining Black/Ross White, side profile

Naturally the classic Monkey style had to provide the cues for the new model. A trapezoid silhouette highlights the compact length, while adding depth and substance to its stance. Simple, curved surfaces are designed independently of each other and feature throughout.

The glossy 5.6L fuel tank, finished in the same paint colour as the frame, swing arm and rear shocks, crowns the machine, and proudly wears a historical 3-D Old Wing design Honda logo. Chromed steel high-level front and rear mudguards – plus the evocatively-stamped exhaust shield, circular mirrors and high-rise handlebars – all pay homage to the original.

Honda Monkey motorcycle - Pearl Nebula Red/Ross White, engine

Modern technology is fully present within the evocative reincarnation of the classic look: a digital full-LCD circular meter features speedometer (which winks playfully when the ignition is turned on), odometer with two trip meters and six-segment fuel level indicator; all lighting is LED; the ‘wave’ pattern key (which also wears the Old Wing motif) features an ‘answer back’ system that makes the lights flash at the push of a button to allow easy location in crowded car parks; the single channel ABS system operates with an IMU to mitigate rear ‘lift’ under strong braking.

As for the power unit, true to its origins, the Monkey’s horizontal SOHC 125cc single-cylinder engine is simple, robust and tuned to deliver useful about-town performance. Air-cooled, with bore and stroke of 52.4 x 57.9mm and compression ratio of 9.3:1, fed by PGM-FI, it produces 6.9kW @ 7,000rpm and 11Nm @ 5,250rpm. The gearbox is 4-speed and the engine returns fuel economy of 189 mpg (WMTC mode).

Monkey 2018 - Banana Yellow/Ross White, motorcycle front 3/4

The Monkey’s steel backbone frame has been tuned for a suitable balance between rigidity and supple feel – perfect for the wide variety of conditions the machine is sure to be ridden in. Oval in cross-section, the swingarm echoes the circular design theme that runs through the bike.

Wheelbase is set at 1155mm, with rake and trail of 25°/82mm and a minimum turning radius of just 1.9m. Wet weight is a mere 107kg, with a seat height of 775mm. The plush seat is made of high-density urethane for maximum comfort.

Honda Monkey motorcycle - Pearl Nebula Red/Ross White, rear wheel

USD front forks wear a premium Alumite finish and are matched by dual rear shocks with 104mm of axle travel. Maximum ground clearance is 160mm. A single 220mm front disc and 190mm rear provide secure stopping performance, managed by the IMU-based ABS. Fat 12-inch block pattern tyres make for a smooth ride and are sized 120/80-12 65J front and 130/80-12 69J rear.

The 2018 Monkey 125 will be available in three colour schemes:

  • Banana Yellow/Ross White
  • Pearl Nebula Red/Ross White
  • Pearl Shining Black/Ross White
2009 Honda Monkey 125 - front 3/4

3. Monkey milestones

1961

First model – made for use at amusement parks, with 5 inch wheels, rigid suspension, foldable handlebars and 3.1kW 49cc engine.

1961 Honda Monkey motorcycle

1963

First road-going model – exported to North America and Europe.

1963 Honda Monkey bike

1967

First model sold in Japan – with ‘fold-down’ seat

1967 Honda Monkey motorbike

1970

Quick-detach front suspension made it possible to fit in the trunk of a small car

1970 Honda Monkey motorcycle

1978

First model with custom bike style ‘tear drop’ fuel tank

1978 Honda Monkey bike

1984

Limited edition ‘Gold’ model

1984 Honda Monkey motorbike - gold limited model

1987

‘R’ model with twin tube frame and hydraulic front brake disc

1987 Honda Monkey motorcycle

4. Technical specification

ENGINE
TypeAir-cooled SOHC 4-stroke 2-valve
Displacement125cc
Bore x Stroke52.4 x 57.9mm
Compression Ratio9.3:1
Max. Power Output6.9kW @ 7,000rpm
Max. Torque11Nm @ 5,250rpm
Oil CapacityUpper 1.1 litres; lower 0.9 litres
FUEL SYSTEM
CarburationPGM-FI electronic fuel injection
Fuel Tank Capacity5.6 litres
Fuel Consumption189 mpg (WMTC mode)
ELECTRICAL SYSTEM
StarterElectric
BatteryYTZ5S
DRIVETRAIN
Clutch TypeWet multi plate clutch
Transmission Type4 speed
FRAME
TypeSteel backbone frame
CHASSIS
Dimensions (LxWxH)1,710 x 755 x 1,029mm
Wheelbase1,155mm
Caster Angle25°
Trail82mm
Seat Height776mm
Ground Clearance160mm
Turning radius1.9m
Kerb Weight107kg
SUSPENSION
Type FrontUSD fork, 100mm axle travel
Type RearTwin shock, 104mm axle travel
WHEELS
Type Front10-spoke cast aluminium
Type Rear10-spoke cast aluminium
Tyres Front120/80-12 65J
Tyres Rear130/80-12 69J
BRAKES
Type FrontSingle 220 mm hydraulic disc with IMU-based ABS
Type RearSingle 190mm hydraulic disc
LIGHTING
HeadlightLED
TaillightLED
1991 Honda Monkey motorbike

 All specifications are provisional and subject to change without notice.

#Please note that the figures provided are results obtained by Honda under standardised testing conditions prescribed by WMTC. Tests are conducted on a rolling road using a standard version of the vehicle with only one rider and no additional optional equipment. Actual fuel consumption may vary depending on how you ride, how you maintain your vehicle, weather, road conditions, tire pressure, installation of accessories, cargo, rider and passenger weight, and other factors.

2004 Honda Monkey motorcycle

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