(some items may not apply)
DAKOTA DIGITAL SPEEDO ADJUSTMENT MODULE
The SIM-1A electric speed correction module is designed to be a permanent addition to your bike's wiring harness to correct the speedometer and odometer after a change in tire size, pulley size or transmission gearing. The unit plugs directly between the stock Harley transmission sensor and the original speedometer or ECM and is easily tucked away into the bike's wiring harness after adjustment is complete.
The new SIM-1A comes in a smaller size for easier mounting and provides an extended correction range.
Direct plug-in for Harley Davidson models: