This RG Speedometer Instrument Extension Harness is used to extend your gauge wiring to 20" (51cm) so you can place your 984604 RG Billet Gauge Bezel right where you want it. - Allows for easy relocation of speedo/tach cluster when using tall risers - 20" (51cm) long OEM wire colors, terminals and connectors Note: This product will also work on other Touring bikes with customization to original OEM parts.