All Balls Racing Solenoid End Cover Starter Button For Harley 1.2 / 1.4 / 1.6 / 1.7 kW Starter Eliminate your handlebar mounted starter switch or add a fail-safe to protect yourself from a failure in the ignition circuit. These simple and sturdy switches mount directly to the starter solenoid by replacing the end cover. Features: Aluminum construction Bypasses the wiring prior to the solenoid Bike can be started despite defective components in the ignition circuit Compatible with most OEM and aftermarket 1.2 / 1.4 / 1.6 / 1.7 starters only Fits most 99-17 Big Twin and 1991-2021 XL Sportster