Motorcycle Technical Information

The Electronic Cruise Control uses a computer to maintain any "set" speed over 50kph (30mph). It instantly deactivates by either front or rear brake lever pressure sufficient to turn on the brake lights. There is also an electronic clutch switch (ECS) on most models. The ECS is designed to disable the cruise if the clutch is disengaged inadvertently while the cruise is engaged.It is not intended to be used to disengage the cruise in normal use. ”Motorcycle

To engage the cruise control you accelerate the bike to the desired speed and press the 'SET' button. You can accelerate the bike, if desired, by using the throttle. When the throttle is released the cruise control will take over again at the previous set speed.


To increase the cruise control speed the "SET" key may be pressed and held. The speed will gradually increase until the key is released. The cruise control will then maintain the new speed. Alternatively the "Tap up" feature allows you to increase the speed by about 1.5 KPH (1 MPH) each time the "SET" key is momentarily pressed.

To decrease the cruise control speed the "RES" key may be used in the same way as the "SET" key, but this will reduce the speed instead of increasing it.

If the cruise control is disengaged by the brakes or the clutch (if the ECS is fitted), the cruise control may be resumed by pressing the "RES" key. The bike will gradually accelerate to the previous set speed. The cruise control will not resume speed if the cruise control has been turned off, either with the power switch or the bike ignition switch.

The principles behind your cruise control are very simple:

  • The computer monitors the frequency of electrical impulses generated by magnets passing a sensor or impulses from the motorcycle's electronic speedometer sender unit;
  • When the SET key is pressed, the computer stores the pulse frequency at the time in memory and then continuously adjusts the vacuum actuator, which controls the carburettors (or injectors) to maintain the pulse frequency at the same figure to which it was set. If the frequency drops below the set frequency, the computer applies more throttle. If the frequency is above the set frequency, the computer backs the throttle off. The computer monitors and reacts to changes very quickly and smoothly so that the speed effectively remains nearly constant.

There are six major components in most kits; the computer, the vacuum actuator, the cable interface unit (CIU), the speed sensor, the switch and the loom.

The functions of each are described below: ( see the picture )

  1. The computer - monitors road speed, adjusts the throttle by controlling the vacuum actuator and monitors the switch and brake system (and the ECS, if fitted) for instructions from these components;
  2. The vacuum actuator - controls the carburettor(s) by pulling or releasing a cable which attaches to the carburettors via the cable interface unit (CIU);
  3. The CIU - translates the motion from the throttle grip and the vacuum actuator to the carburettors via a new cable supplied in the kit;
  4. The speed sensor - generates electrical pulses when the bike is in motion;
  5. The switch - sends instructions from the rider to the computer;
  6. The electrical loom - connects the computer, the vacuum actuator, the sensor and the switch to the motorcycle's electrical system.

Mounting brackets and other components are made to suit specific motorcycle models. Most brackets supplied with the cruise control are laser cut from '304' grade stainless steel. The calibration of the computer and ratios in the CIU are also set up to suit the specific model of motorcycle. Covers are provided for components if needed for protection or to enhance the appearance of the cruise control.

Alterations to the motorcycle are minimal and generally easy, if required. Electrical connection is simply a matter of plugging the cruise control loom into the motorcycles loom in most cases, as we have used the same type of electrical connectors as those used on the motorcycle.

The cable interface unit is a new component developed and patented by MotorCycle Setup and is the key to safe cruise control operation on many motorcycles.

See your dealer, this web site or phone us, for full details of models and prices.

”Motorcycle ”Motorcycle
6 Kingston Street, Mount Waverley, Victoria 3149, Australia     
Tel. 61 3 9808 2804    
Fax. 61 3 9808 2445
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