20″ Air Suspension Bicycle Fork 4.0″ Fat Tire Bike w/Headset, Double Shoulder

Easy Adjustability: The manual lockout lets you stiffen the fork for paved sections or free it for more suspension over obstacles. 20″ Suspension Fork 4.0″ Fat Bike Snow Fork Fat Bicycle Fork. 11/8″ Headset included and works well with the fork,1 1/8″ headset:For 44mm Head Tube and 28.6mm Fork and 9mm quick release.