Baja Designs introduced the latest version of their DSK in March 2011.The kit incorporates a key switch for added protection when leaving you bike unattended. To utilize the latest switch you must upgrade your front harness. A benefit of this new front harness is the inclusion of a power plug for Acewell 1550 and 3200 units for customer wishing to add a speedometer/odometer unit. This is a complete package to upgrade your EZ-Mount DSK switch to the latest version for customers who desire the new slim switch or are replacinga damaged unit. Includes: Slim Handlebar Switch, Key Switch, Front Harness, RelayAdaptor EZ-Mount kits are identified by a battery and regulator mounted behind the headlight onthe aluminum backing plate. NOTE: If your kit has the battery/regulator mounted under the seat you will need upgrade package 12-8018 instead.