Contents 

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

Welcome To ShockClock

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8.2 Mounting the Transducers
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1. Place the bike on a stand with both wheels off the ground.  Remove and disassemble the shock.  Record the Spring Set Length and the Free Travel (i.e. the shock travel to the Bottom-Out Bumper) during disassembly.  Reassemble the shock but leave the Spring and the Bottom-Out Bumper off.

 

2. Remove the Rear Wheel.  Reinstall the axle and snug down the nut so it stays in place.  Put the axle in the center of the Adjustment Slot (to provide a consistent measurement point).

 

3. Convert one of the Transducers into a Shock Mountable LR Transducer by removing the Transducer Head and attaching it to the LR Tube.  Line up the slots in the Adapter and the Transducer Head.

 

4. Install the Shock and attach the LR Transducer to the lower shock mount with the Strap.  The Transducer Head will be at the bottom.  

> There are two types of Lower Shock Mounts, Clevis and Eyelet:

 - Clevis Lower Shock Mount  This one is easier because you can tighten the lower shock mounting bolt.

 

 - Eyelet Lower Shock Mount  This one is a little trickier because the linkage rotates with respect to the shock axis.  This means the lower shock mounting bolt should only be finger tight, allowing it to rotate with respect to the linkage.  This will allow the Transducer to remain aligned with the shock.

 

5. Attach the Control Rod to the Shock Body.  Align the LR Transducer with the shock.  Extend the small Control Rod and hose clamp it to the Shock Body.  Align the LR Transducer Tube, the Control Rod, and the shock shaft.  

 

You may have to bend or twist the aluminum mounting strap or flip the clamp to get a good angle.   If it is slightly misaligned it may be OK.  Make sure there is always clearance and there is no contact with the linkage as you move the swingarm through its entire travel.  Adjust as necessary.

 

Sometimes the best mounting is with the LR Transducer in front of the shock, sometimes in the back, and sometimes on the side.

 

6. Mount the standard Transducer vertically on the rear.

7. Connect the ShockClocks to the Transducers and connect the Remote Record Switch.