Legends Air A Adjustable Air Suspension For 1999 22 Harley FL models 1311 0157 MPN_539M04850 2016 Triumph Thunderbird Commander 1700 2016 Triumph Thunderbird Commander 1700 Includes removable shoulder strap and carrying handle for transportation ease Deflective Disc Valved Damping self adjusts to frequency and ensures controlled performance Product Details Product Line Legends Air A Adjustable Air Suspension Part Number 1311 0157 Fitment Type Model Specific Fitment Use Type Unit Sale Qty Kit Style Size Position Rear Material Color Finish Functional Length 12 13 Inches Product Disclaimer Fitment Note Heavy Duty application are recommended for 250 Pounds or greater rider and passenger total weight Fitment Note Also consider Heavy Duty if the majority of your riding is 2 UP