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Autoshifters
Autoshifting...
In any form of racing, consistency is what makes winners. A key ingredient in being consistent and gaining an advantage over the competition is making gear shifts at the exact same time every time. One of the most effective ways to accomplish this is with the use of an auto shifting setup. The term autoshifter refers to an air shifter setup where a rpm activated switch is used to trigger the shifter automatically. A shift light is sometimes adapted to perform this function. There are also tachometers as well as ignition systems and stand-alone rpm activated switches that will do the job.

The Dangers...

We've heard stories about racers, in their pit, blipping the throttle while tuning and having the bike "autoshift" into gear and take off without a rider. Autoshifters have a potential to be very dangerous if not configured properly. Even manually operated air shifter configurations can be unsafe. With a manual setup there is a chance for someone to accidentally bump the button with the motor running. This is another potentially dangerous situation.Convention...
Unfortunately, conventional thinking that would give us a safe operating air shifter/autoshifter would also give us a shifter that is not rider friendly. The first thought would be to install an on/off switch. That would be fine, except, if you forget to turn it on, you launch, you push the shifter button and nothing happens. And if you do remember to turn it on, you launch, the bike leaves good, but then if you get a little tire spin the rpm's shoot up for an instant and the autoshifter does what is suppose to do and shifts, the rpm's drop, the motor bogs and you lose again.
Then if you forget to turn it off after the run your back where you started with an unsafe condition. The bottom line is the autoshifter has a mind of it's own and you are not in complete control.

The Solution...

The way we configure our system shifting can be done either manually or automatically and most importantly IT IS SAFE.
Here's how it works. The handlebar button and the rpm activated switch are connected in series so the button must be pushed AND the rpm activated switch, which we use to also turn on a shift light, must be "on" at the same time for the shift to occur. That's where the safety part is. Here's the rider friendly part. When you launch, wait for the bike to settle out then push the button and hold it. From that point on every time the rpm activated switch "fires", the bike will shift. Count the shifts then let go of the button after the last gear change. This way if you get some tire spin on the launch the bike will not shift automatically. If you have to peddle it don’t grab the button until your ready to shift. If you want to shift manually, wait for the rpm switch or shift light to turn on and push the button for each shift. If you plan on shifting manually set the rpm switch at a lower value. This will allow you to shift by the "seat of the pants" feel while maintaining the safety aspects of this configuration.

We hope this helps you go a little quicker and a little faster a little safer.

 

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