Corrects speedometer readings when a tire or pulley change has been made on stock H-D systems
Plug into stock wiring harness between transmission sensor and speedo
No cutting or splicing required
Adjustment is made with 2 sealed push button switches to increase or decrease while bike is being driven
Correction to within 1 mph or 1 kph
Fits 96-06 H-D Models
Note: Speedo adjust module is not required with Dakota Digital speedometers.