Monday, May 12, 2008 I 12:25 AM   
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  SpinScanTM Pedal Stroke Analyzer is an exclusive feature of CompuTrainer and Velotron that helps you increase power and efficiency. The multi-color torque graph represents one full 360° revolution divided into 15° segments. The left/right leg percentage power splits give you the feedback needed to pedal in "circles". It will identify "flat" or "dead" spots in the pedal stroke where optimal power is not transferred to the drive train. A dynamic bike fit utilizing SpinScan is an excellent way to take the subjectivity and guesswork out of the bike fit process. And the ATA (Average Torque Angle) displayed on the Polar Graph helps you adjust your position for optimum power.  
     
  SpinScanTM can be viewed in a multitude of ways  
 
Bar Graph or Polar Mode
Picture-in-Picture with 3D Software
Full screen in CompuTrainer Pro PC1 Software
Full screen in optional Coaching Software
 
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The high "peaks and low valleys" or  flat spots represents a choppy, pedal mashing style of cycling that does not maximize power distribution.
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The flat and more even bar graph shows more 'even' pedalling mechanics as reflected in the "SpinScan" number of 75.
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The Polar Graph of SpinScan for this cyclist's non-symmetrical power output shows up as an "unbalanced" peanut shaped display as well as a 35/65 power split between each leg - an additional piece of bio-mechanical performance data which relates to overall performance efficiency.
See software in Action click here

Dynamic Bike Fitting with SpinScan by Sean Drake

The Hows and Whys of Cycling-specific Testing to Improve Performance