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How could I upgrade my Schwinn Airdyne exercise bike from a mechanical load indicator (speedometer) to an electronic display?

There are two electronic display options that require additional parts to convert the Schwinn Airdyne 3 and Airdyne 4 exercise bikes from the mechanical speedometer to the electronic display.

Option #1
Upgrade using Schwinn AD4 computer (P1492823) which requires sprocket and chain replacements for calibration purposes:

  • Computer - P1492823
  • Spoke Protector with Magnet - P1490887
  • Speed Sensor - P1490837
  • Speed Sensor Bracket - P1490962
  • Spoke Protector Mounting Clips (x3) - P1490827
  • Left Computer Support (Mounting) Tube - P1490679
  • Right Computer Support (Mounting) Tube - P1490680
  • Chain (Idler Hub to Fan) - P1490457
  • Chain (Crank to Idler Hub) - P1490458
  • Sprocket for Idler and Fan (x2) - P1490540

Option #2
Upgrade using Schwinn AD5 computer (P1492900):

  • Computer - P1492900
  • Spoke Protector with Magnet - P1490887
  • Speed Sensor - P1490837
  • Speed Sensor Bracket - P1490962
  • Spoke Protector Mounting Clips (x3) - P1490827
  • Left Computer Support (Mounting) Tube - P1490679
  • Right Computer Support (Mounting) Tube - P1490680
  • Instrument Mounting Screw (x4) - P1491331
  • Washer (x8) - P1493589

 

Items Discussed Above