Honda CBX750 Horizon (RC18) 1984

Large Sports Bike "Honda CBX750 Horizon" for Comfortable Long-distance Touring

Honda CBX750 Horizon (RC18) 1984
1984 Honda CBX750 Horizon photo.
Model RC18. Body Colour: Black with Red Sticker

The Honda CBX750 Horizon, released in March 1st 1984, is a touring model based on the sports model CBX750F. The name HORIZON clearly indicated that it was a tourer. Its biggest feature is that it adopted a shaft drive as the drive system. The handlebar position is also up, allowing you to ride in a relaxed riding position. In order to take advantage of the advantage of the shaft drive, which has a longer maintenance interval than the chain type, an auto tensioner was used for adjusting the cam chain inside the engine, and the ignition system was a pointless full transistor type. Equipped with a back torque limiter mechanism that prevents excessive engine braking that occurs when shifting down rapidly. The front suspension is equipped with an anti-nose dive mechanism that responds to brake torque. Since it is a model of the CBX750F series, it is sometimes called the CBX750F Horizon, but the official model name was CBX750 Horizon without "F".

Honda CBX750 Horizon is equipped with a lightweight and compact parallel 4-cylinder engine (747cc) in a fearless style, and adopts a quiet and easy-to-maintain shaft drive mechanism, making it suitable for long-distance touring.

Honda CBX750 Horizon blue
CBX750 Horizon 1984 picture「ホンダ・CBX750ホライゾン」
Release date: 1984-03-01. Color: Blue

This CBX 750 Horizon is equipped with a DOHC, 16-valve, in-line 4-cylinder engine that achieves high output of 77 horsepower and fuel economy of 36 km/L (60 km/h level driving test value) in a lightweight and compact design. . Furthermore, in order to achieve maintenance-free operation, there is a hydraulic valve clearance automatic adjustment mechanism that does not require tappet clearance adjustment, a brushless AC generator located at the rear of the engine that does not require brush replacement, and a hydraulic clutch that does not require clutch lever play adjustment. are used in each department.
The body design uses a double cradle frame with a light weight and high rigidity design based on computer analysis and a lubricating oil passage for the engine inside the downtube. The front suspension is equipped with an air suspension, and the rear is equipped with an FVQ damper that can adjust the damping force in four stages. . It also has double disc brakes on the front.
In addition, Honda's unique back torque limiter mechanism that smoothly transmits engine torque fluctuations that occur during downshifts to the rear wheels to enable smooth driving, and a shaft drive mechanism that is low-vibration and quiet. It is a large touring sports bike that is comfortable to ride and easy to maintain.
As a result, Honda's 750cc class sports bikes have expanded to 7 models, meeting the needs of a wider range of customers.

Other Key Features of Honda CBX750 Horizon

  • Equipped with an oil cooler with excellent cooling efficiency.
  • Uses an automatic cam chain tensioner that does not require cam chain adjustment.
  • Adoption of a pointless electronic advance type full transistor ignition unit.
  • A 4-2-1-2 collective exhaust system designed to improve quietness and exhaust efficiency.
  • Uses 18-inch front and 16-inch rear cast wheels.
  • Equipped with tubeless tires both front and rear.
  • Equipped with square halogen headlights with a large amount of light of 60W/55W.
  • Fuel tank with a slim design.
  • The oil filter uses a cartridge system.
  • The cowling has a fearless design.

1984 Honda CBX750 Horizon Specifications

The CBX750 Horizon is equipped with Honda's unique back torque limiter mechanism that smoothly transmits engine torque fluctuations that occur during downshifts to the rear wheels and enables smooth running, and a shaft drive mechanism that is low-vibration and quiet. It was released as a touring model with excellent ride comfort and maintainability. The 747cc air-cooled 4-stroke in-line 4-cylinder DOHC 4-valve engine is the same as the CBX750F. Here is the table of main specs of CBX 750 Horizon model year 1984:

Total length (m)2.200
Width (m)0.780
Total height (m)1.195
Length (m)1.515
Minimum ground clearance (m)0.140
Seat height (m)0.780
Vehicle weight (kg)231
Dry weight (kg)215
Capacity (person)2
Fuel consumption (km/L)36 (60km/h level running test value)
Slope climbing ability (tanθ)0.46 (about 25 degrees)
Minor turning radius (m)2.8
Engine typeRC17E
Air-cooled 4-cycle DOHC 4-valve 4-cylinder
Total Displacement (cm3 )747
Inner Diameter x Stroke (mm)67.0×53.0
Compression Ratio9.3
Max output (PS/rpm)77/9.500
Max torque (kg-m/rpm)6.5/7.500
Capture modelVE65
Starting methodSelf
Ignition methodFull transistor
Lubricating oil methodCombined pumping and splashing method
Lubricant capacity (L)3.6
Fuel tank capacity (L)16
Clutch typeWet multi-plate diaphragm spring
Transmission typeConstant mesh 6-speed return
Transmission ratio1st2.235
2 speed1.545
3 speed1.240
4 speed1.037
5 speed0.866
6 speed0.750
Reduction ratio primary/secondary1.780/3.670
Caster (degrees)30°00′
Trail (mm)111
Tire sizeFront110/90-18 61H
Rear130/90-16 67H
Brake typeFrontHydraulic double disc
(dual piston caliber)
RearMachine reading trimling
Suspension methodFrontTelescopic
(with cylindrical air springs)
RearSwing arm (coil spring)
Frame FormatDouble Cradle

Honda CBX750 Horizon 1984 Price

Sales plan: 2,000 units (Japan domestic/yearly) was planned.
National Standard Cash Price : 685,000 yen.
(Hokkaido and Okinawa are 10,000 yen higher. Excluding some remote islands).

The CBX750 is a motorcycle that was once manufactured and sold by Honda Motor Co., Ltd. There is also CBX650 Custom, which was produced with the same concept before the release of this model, and the CBX650PCBX750P, which is a police bike specification vehicle.


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