Sensor Wire, AD4-5

Description

The Sensor Wire, AD4-5 is a replacement wiring lead used to restore console-to-sensor communication on select Schwinn Airdyne bikes. This compact repair part fits older big-fan models and is an essential piece of schwinn airdyne parts maintenance when speed or RPM readings stop displaying correctly.

• Designed for select Schwinn Airdyne AD4 bikes and commonly referenced for AD4/5 applications.
• Replaces part number 91355-SA.
• Used in the main frame/console wiring path on bikes equipped with an electronic display and speed sensor setup.
• Often chosen as an airdyne main frame parts sensor wire replacement when the original lead is damaged, pinched, frayed, or no longer sends a stable signal to the monitor.

This schwinn sensor wire is intended to connect the pickup/sensor circuit to the bike’s display system, helping restore accurate workout feedback. It is a practical solution for older Airdyne units that have intermittent console readings, no RPM display, or speed data dropouts. Built as an aftermarket replacement for the original wiring lead, it offers dependable fit and function for compatible models. Installation is generally straightforward for most DIY owners: remove the affected covers, route the new wire along the original path, and reconnect the terminals carefully to avoid pinching during reassembly.

OEM-quality replacement with easy DIY installation, and it ships same day from our warehouse on most in-stock orders.