Rear wheel speed sensors mount to the rear axle spacer on most softail and rigid bikes. Inductively reading the rear pulley bolts , the sensor provides a pulse signal to the speedometer which in turn calculates and displays the bike's speed.

• SEN-1018 - For use with HLY-30xx Series speedometers (except HLY-3011/3015/ 3016).
• SEN-2018 - For use with HLY-2001 and older series speedometers.
• SEN-5018 - For use with HLY-50xx Series speedometers.
• SEN-6018 - For use with HLY-6000, MCV-7xxx, MCL-5xxx, MCL-4xxx Series, HLY-3011/3015/ 3016, HLY-2002 and HLY-1000 series speedometers.

* Requires 1-3/32" axle spacer.
* Sensors dimensions: 2" Wide x 2-3/4" Long x 1/2" Thick.
* Will not work to drive a stock Harley-Davidson electronic speedometer.

Made of Polished machined aluminum.