Assault Industries Shock Reservoir Nitrogen Expansion Caps (Fits: Fox Shocks) NS-U-CAP 2017-2023 Harley Davidson Street Glide 600" width with a 12mm

600" width with a 12mm hole

Strong 2500 lbs

6L (2 Door and 4 Door)

aFe Track Series carbon fiber Pro Dry S air intake systems are open-element designs displaying massive air filters and carbon fiber intake tubes

Assault Industries Shock Reservoir Nitrogen Expansion Caps (Fits: Fox Shocks) NS-U-CAP 2017-2023 Harley Davidson Street Glide 600" width with a 12mmAssault Industries reservoir expansion caps increase the nitrogen volume in shock absorbers for a more consistent feel throughout the entire range of travel. They are CNC machined from 6061 T6 billet aluminum and feature integrated cooling fins to help with heat dissipation during aggressive use. High pressure nitrogen purge fill valves make shock service easier. Fits: Fox shock reservoirs Note: These caps have been tested to fit most Fox brand