Honda AX-1 MD21 1987

Release of Honda Ax-1, A Novel Sports Bike that Balances Driving Performance from Urban Areas to Unpaved Roads at A High Level

Honda AX-1 MD21 1987 Blue
1987 Honda AX-1 photo

Honda Motor Co., Ltd. has developed a new type of innovative light motorcycle that can be ridden lightly and happily not only on normal city driving, but also on mountain passes and unpaved roads Honda AX-1 will be released on December 15th 1987.

This AX-1 thoroughly pursues what basic performance should be so that it can be ridden "for a wider range of riders", "in a wider range of riding environments" and "more fun and light".
As a result, it is a sports bike in a new field that balances the advantages of conventional land sports bikes and super sports bikes at a high level. It is a dynamic and innovative one that balances quality and texture.
The engine is a newly designed 249cc, water-cooled, 4-cycle, DOHC single-cylinder engine that is particularly easy to handle and has excellent responsive torque characteristics in the low and medium speed ranges that are often used normally, while maintaining high revs. However, it is designed to demonstrate the output characteristics with good elongation.

1989 Honda AX-1 Green
1989 Honda AX-1 MD21

1987 Honda AX-1 Price

Sales plan (domestic/annual) : 10,000.
National Standard Cash Price : 419,000 yen. (excluding Hokkaido, Okinawa, and some other remote islands)

In addition, the NS cylinder (the inner wall is coated with nickel and silicon carbide), which does not use an iron sleeve, is lightweight, has excellent wear resistance and reduces frictional resistance, is the first in Japan for a mass-produced 4-cycle engine. adopted.
The frame is an equally rigid frame that combines newly designed steel plates and steel pipes, and the muffler is incorporated into part of the frame structure to achieve a lightweight (dry weight: 114 kg) and slim body. . In addition, by fixing the fairing with dual headlights and meters to the frame, more agile maneuverability has been achieved.
For the suspension, a long stroke (front 220mm/rear 200mm) suspension is used to improve traversability on unpaved roads. By combining 21-spoke cast aluminum wheels (19-inch front, 16-inch rear), the seat height is kept to 810mm, providing excellent maneuverability on rough roads and agile maneuverability in urban areas. are compatible.

1987 Honda AX-1 MD21 Equipment

  • Self-starter for easy starting.
  • Easy-to-use and lightweight aluminum rear carrier.
  • Stainless steel exhaust pipe.
  • Front and rear hydraulic disc brakes / Adjustable front brake lever. Duralumin rear brake pedal.
  • Exclusively designed new pattern tubeless tire
  • Small diameter (100mm) dual headlights with pressurized krypton gas filled bulbs (35W/30W x 2 lights).
  • Polypropylene skid plate at the bottom of the engine. front fork boots.
  • Aluminum pillion step and bracket.

1987 Honda AX-1 (MD21) Specifications

Main specs of Honda AX-1 model year 1987:

Total length (m)2.040
Width (m)0.805
Total height (m)1.115
Length (m)1.350
Minimum ground clearance (m)0.245
Seat height (m)0.810
Vehicle weight (kg)124
Dry weight (kg)114
Capacity (person)2
Fuel consumption (km/L)50.3 (50km/h level running test value)
Minimum turning radius (m)2.1
Engine modelMD21E (water-cooled, 4-cycle, DOHC single cylinder)
Total Displacement (cm3 )249
Inner Diameter x Stroke (mm)70.0×64.8
Compression Ratio11.0
Max output (PS/rpm)29.0/8,500
Max torque (kg-m/rpm)2.6/7,500
Starting methodSelf-operated
Ignition methodCDI
Lubrication methodCombined pumping and splashing method
Lubricant capacity (L)1.6
Fuel tank capacity (L)9.0
Clutch typeWet multi-plate coil spring
Transmission typeConstant mesh 6-speed return
Transmission ratio1st2.846
2 speed1.777
3 speed1.333
4 speed1.041
5 speed0.884
6 speed0.785
Reduction ratio (primary/secondary)2.727/3.153
Caster (degrees)25°30′
Trail (mm)89
Tire sizeFront90/100-19 55P
After120/90-16 63P
Brake typeFrontHydraulic disc
Suspension methodFrontTelescopic
AfterSwing arm
Frame formatDiamonds


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