Welcome to the ShockClock

1- Introduction

1.1 Ultrasonic Transducer Principles

1.2 Standard vs. Pro Kit

1.3 Dirt vs. Street

1.4 Accessories

1.5 Computer Requirements

1.6 ShockClock Specs

1.7 General Safety

1.8 Warranty and Copyrights

1.9 Technical Support & Contact

2 - Installing PC Software

2.1 Uninstall Prior ShockClock Software

2.2 Install ShockClock Software

2.3 Installing a USB/Serial Adapter

2.4 Determine the COM Port Number

2.5 Perform a Trial Download

3 - Hardware

3.0 Hardware Overview

3.1 Dirt Bike Mounting

3.1.1 Front Transducer Mounting - Dirt

3.1.2 Rear Mounting - Laid-Down - Dirt

3.1.2.1 Laid-Down Transducer Geometry

3.1.3 Rear Mounting - Vertical - Dirt

3.1.4 ShockClock Mounting - Dirt

3.2 Road Race Mounting

3.2.0 Road Race Mounting Intro

3.2.1 Front Transducer - Conventional - RR

3.2.2 Front Transducer - Upside-Down - RR

3.2.3 Rear Transducer Mounting - RR

3.2.4 ShockClock Mounting - RR

3.3 Mountain Bike Mounting

3.3.0 Mountain Bike Mounting Intro

3.3.1 Front Transducer - MB

3.3.2 Rear Transducer - MB

3.3.3 ShockClock Mounting - MB

3.4 Adjusting the Tubes

3.5 Shortening the Tubes

3.6 Transducer Maintenance

4 - Using the ShockClock

4.1 Operate the ShockClock

4.2 Testing Tips

4.3 ShockClock Problems

5 - PC Software Basics

5.1 Startup Screen

5.2 Preferences

5.3 Downloading

5.4 Opening Files

5.5 Closing Files

5.6 File Information

5.7 Import Older Files

5.8 Export to Excel

5.9 Graph Basics

5.10 Set the Zero Point

5.11 Select Data Range

5.12 Notes

6 - Analysis

6.0 Analysis Intro

6.1 Single File Analysis

6.1.1 Bottoming (& Travel)

6.1.2 Travel & Velocity Overview

6.1.3 Waveform Analysis

6.1.4 Rebound Push Test

6.2 Comparing Files

6.2.1 Settings vs. Results

6.2.2 File 1 vs File 2

6.2.3 Travel Histogram

6.2.4 Velocity Histograms

6.3 Analysis Procedure

6.3.1 Troubleshooting

6.3.2 Analysis - Dirt - PDA

6.3.3 Analysis - Road Race

6.3.4 Analysis - Mountain Bike

7 - Measuring Static Sag

7.1 The Sag Concept

7.2 Sag Procedure

7.3 Calculating Sag

7.4 Sag Guidelines

8 - Leverage Ratio

8.1 The Leverage Ratio Concept

8.2 Mounting the Transducers

8.3 Leverage Ratio Measurement

8.4 Creating a Leverage Ratio File

8.5 Lowering or Raising a Bike

8.6.1 Leverage Ratio Comparison

8.6.2 Rear Wheel Force Comparison

8.7 Convert a ShockClock Recording

9 - Convert to Vertical - Dirt

9.0 Convert to Vertical Overview

9.1 Laid-Down Transducer Mounting

9.2 Laid-Down Transducer Geometry

9.3 Convert Data to Vertical

10 - PDA Help Guide - Dirt

PDA Getting Started

PDA About the ShockClock

PDA Tips

PDA Installing Software

PDA Create a Trial Recording

PDA Hardware

PDA Dirt Bike Mounting

PDA Front Transducer Mounting

PDA Rear Laid-Down Mounting

PDA Laid-Down Transducer Geometry

PDA Mountain Bike Mounting

PDA Front Mountain Bike

PDA Rear Mountain Bike

PDA Rear MB Laid-Down Geometry

PDA Operate the ShockClock

PDA Adjusting the Tubes

PDA Shortening the Tubes

PDA Transducer Maintenance

PDA Accessories

PDA Software

PDA Prefs

PDA Downloading

PDA Opening a File

PDA View Results

PDA Graph

PDA Peaks

PDA Settings & Notes

PDA File 1 vs File 2

PDA Closing Files

PDA Synchronizing Files with a PC

PDA Technical

PDA ShockClock Problems

PDA Technical Support & Contact

PDA ShockClock Specs

PDA Data Analysis

PDA Dirt Analysis

Glossary

Glossary of Software

Glossary Suspension Hardware

Troubleshooting Glossary

> The Laid-Down Transducer solves the problem of the Transducer sticking above the rear fender and nudging the rider from behind.

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> General Laid-Down Transducer Mounting Guidelines

• When you have completed this section go to 3.4 Adjusting the Tubes.
• Use 8" Travel Wave-Guide Tubes. This is good for most full size dirt bikes. 

 

 - Outer Wave-Guide - 320 mm (12.5") end to end.

 - Inner Wave-Guide - 275 mm (11") end to end. 

 

 -  If you are shortening 15” Tubes see 3.5 Shortening the Tubes.

 - You can also purchase tubes pre-sized.  See 1.4 Accessories.

 - Note: Do not plug the end of the inner tube it is an air vent.

 

• Mount the Transducer above the swingarm from just above the rear axle to just below the bottom side panel mount. 

• There must be clearance throughout the entire travel. This includes keeping the Transducer Head from hitting the top of the swingarm at bottom-out.
• Zip tie the cable to the Transducer Head. Make a big loop and zip tie it to the frame on the inside where it can't be hit with a rider's boot.

• See www.shockclock.com for mounting examples.

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> Upper Rear - Laid-Down

• The best location is usually just below the lower number plate mounting bolt. Most of the time the best mounting is on the inside of the lower number plate tab instead of the outside. This requires a longer number plate bolt.

• It's important the rider doesn't hit it with his boot while riding. Mounting on the inside allows the number plate to be reinstalled for testing. Use washers as necessary to space the number plate out or the Transducer in.
• The Transducer Cable should be securely zip tied and routed inside the frame where there is no chance of snagging it. Put a large loop so the rotation of the Transducer doesn't break the cable.

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> Lower Rear - Laid-Down

• For hollow rear axles choose the correct lockstem to fit in the axle.  There are three sizes supplied to fit most models. Wrap the lockstem with masking or duct tape to fit "in-between" sizes. Grease the clamp o-rings.

• Locate the lower clamp as close to the top of the swingarm as possible without hitting. 

• If the axle is not hollow you will need to make a custom mounting bracket. 
• To finish the mounting see 3.4 Adjusting the Tubes.

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> Convert to Vertical

The “Laid-Down Data” is not “Vertical” Wheel Travel.  The data can easily be converted with the PC or PDA.  See 9 - Convert to Vertical - Dirt

 

Auto-Convert - PC or PDA

The Laid-Down data can be converted into Vertical data automatically while downloading.  This requires measuring the geometry of the Laid-Down Transducer with a tape measure and inputting it into the Default Vehicle Preferences.

 

Convert to Vert (Edit Menu) - PC Only

If you did not setup the software to auto-convert upon download you can still apply the "Laid-down Geometry" using the "Convert to Vert" in the File Menu.  This will apply the current Default Vehicle Laid-Down Geometry in Vehicle Preferences to the data in File location 1 only.  (Measure the geometry of the Laid-Down Transducer with a tape measure and input it into the current Vehicle Type in Preferences before applying.)