Speedometer Recalibration Unit
Starting in 1994, the factory started using electronic speedos on some of the models. Today, all models use this. If you are changing the transmission pulley, rear wheel pulley, rear tire or installing one of our transmissions, you will need a recal box. This kit is designed to splice our recalibration unit into the wiring harness on your 1987-2006 Big Twin(except 06 Dyna).