These lower fairings add wind and weather protection around the rider’s legs. Harley-Davidson describes development using computer airflow modelling, wind-tunnel work and riding assessments. A lever operates the wind deflectors so the rider can adjust airflow and direct engine heat away in warmer weather. The film shows the adjustment, the shape around the legs and the storage built into each side.
Each storage compartment has a push-button, damped door and space for small items such as keys, gloves or a wallet. A removable panel at the leading edge can accommodate optional LED Fog Lamps 68000453, purchased separately. Kit 57100505 supplies the pair of lower fairings, compartment lids and mounting hardware in a primed finish ready for paint. The film discusses matching factory colours, and the catalogue associates the design with the Street Glide Ultra. This particular product reference is the primed kit.
The lower fairings require the appropriate supporting engine guard. Guard 49000284 is chrome and 49000285 is black. Their shape supports the lowers and allows optional highway pegs; the guard may also help protect the motorcycle’s finish in a low-speed tip-over. It does not establish protection for the rider or passenger in a crash. The guards listed here fit the specified 2023-on CVO FLHXSE/FLTRXSE and 2024-on FLHX/FLTRX applications. Road Glide installations additionally need the appropriate fairing support kit, 47201044 or 47201045, and these guards do not fit with Heavy Breather air cleaners.
The lower-fairing kit has a broader fitment list, including specified 2025-on FLHXU and named 2026-on Street Glide and Trike applications. That does not make the two-wheel engine guards suitable for every Trike: Road Glide 3 requires guard 49000330 and two each of fasteners 2708A, 6116 and 4924. Match the lower fairings, guard and support hardware to the exact model and year. Fog lamps and highway pegs remain separate accessories.
