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Setting the Zero Point is the first thing to do.
The choice of Dirt (Automatic) or Street (Manual) Zero is made in Preferences prior to downloading.
> How does the ShockClock know where full extension is? Strictly speaking, it doesn’t – until you tell it or you let it find it itself.
The ShockClock Software can look through the recording and find the lowest point. This process works great for dirt bikes because the suspension pretty much always gets fully extended at least one time during the recording. However this is not true for street or road racing. Therefore we use Manual Zero for any situation where we are not sure the suspension will get fully extended during a recording.
- Zero Offset Full extension of the suspension is the “Zero Point”. Travel is the distance from full extension. In the example, suspension has compressed from full extension (the zero point) to about 105 mm travel.
ShockClock allows you to set the zero point manually. This is useful for Road Racing where Automatic Zero won’t always work because the suspension may not get fully extended.
- Procedure:
Note: This Manual Offset will be correct until you move the Transducer or brackets. Note that adjusting the Rear Ride Height by lengthening the shock or changing the frame Ride Height Adjuster moves the Manual Offset. Just changing the spring preload will have no effect on the Zero Point.
> Dirt - Automatic Zero For off-road, ShockClock Software does better than just finding the point of farthest extension. Suspension components have top-out springs and swingarm flex. This causes a small bounce so the point of farthest extension may be up to 7 mm farther than where you would want the zero point.
To solve this problem the software computes an average of the lowest points. This "zero point" is usually a far better fit than the lowest extension point. The following example illustrates this:
To use Automatic Zero set the Slide Switch to "Dirt".
In this image the zero point is calculated by finding the farthest point of suspension extension.
In this screen Automatic (Smart) Zero has been used. It has shifted the entire waveform down an additional 3 mm and makes a better fit for the data.
For off-road the "Dirt" setting is a fast, easy way to find the zero point for your suspension. |
