OneUp EDC Tool System Top Cap – Gold Special headset preloader top cap for EDC tool to store inside fork steer tube Includes the worlds lightest headset top cap (4.2g), and an EDC steerer plug with drain hole which keeps crud out of your steerer Top caps are compatible with all 1-1/8″ aluminum steerer tubes Cassette-type lockring adjusts headset preload, uses common cassette lockring tool The EDC steerer plug is required for EDC tool storage and is compatible with most aluminum tapered steerer tubes Includes: EDC top cap, EDC steerer plug, (2) 1mm, 3mm, & 5mm Headset Spacers