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 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

  • Right Panel Support Tube Right Panel Support Tube
    Price: $7.19
    SS #: P1490680 | Item No Longer Available
  • Speed Pick Up Bracket Speed Pick Up Bracket
    Price: $4.20
    SS #: P1490962 | Item No Longer Available
  • Sensor Sensor
    Price: $12.88
    SS #: P1490837 | Item No Longer Available
  • Chain For Idler To Fan Chain For Idler To Fan
    Price: $7.67
    SS #: P1490457
  • Sprocket, 15T Sprocket, 15T
    Price: $6.25
    SS #: P1490540 | Item No Longer Available
  • Computer, Graphite, Airdyne, Big Fan, Schwinn Computer, Graphite, Airdyne, Big Fan, Schwinn
    Price: $195.00
    SS #: P1492823 | Item No Longer Available
  • Instrument Mounting Screw Instrument Mounting Screw
    Price: $0.11
    SS #: P1491331
  • Chain For Crank To Idler Chain For Crank To Idler
    Price: $5.46
    SS #: P1490458
  • Computer, Airdyne, Big Fan, Schwinn Computer, Airdyne, Big Fan, Schwinn
    Price: $169.93
    SS #: P1492900 | Item No Longer Available
  • Left Panel Support Tube Left Panel Support Tube
    Price: $7.19
    SS #: P1490679 | Item No Longer Available
  • Right Side Spoke Protector Right Side Spoke Protector
    Price: $5.73
    SS #: P1490887 | Item No Longer Available
  • Spoke Protector Clip Spoke Protector Clip
    Price: $3.31
    SS #: P1490827 | Item No Longer Available
  • Washer Washer
    Price: $0.35
    SS #: P1493589 | Item No Longer Available