S&S CYCLE 55-1051 55-1051 Intelligent Spark Technology (IST) Ignition System Sensor - Crank Position Sensor notify-it-hidden Air springs maximize wheel travel

Air springs maximize wheel travel and adjust to any desired ride height

Will not fit '15-'18 Road Glide models

bar-type tachometer

mounting flanges

S&S CYCLE 55-1051 55-1051 Intelligent Spark Technology (IST) Ignition System Sensor - Crank Position Sensor notify-it-hidden Air springs maximize wheel travelFeatures The S&S system makes use of crank position sensor, cam position sensor if present, MAP sensor, cylinder head temperature sensor and an exclusive knock sensor that detects detonation or knock while the engine runs Knock sensor allows the ECU to automatically adjust ignition timing to eliminate knock whenever it occurs Optimizes power and fuel economy The Intelligent Spark Technology Ignition Module requires an installation kit that must be