Wolf Tooth Ultralight Stem Cap with Integrated Spacer Shaving Those Grams Wolf Tooth's integrated stem cap and spacer is a great way to add some bling to your bike while shaving precious grams. This ultralight alloy component is machined from 6061-T6 aluminum and is available in various sizes and colors. The one-piece design helps to simplify installation while providing a clean, ultra-sleek appearance. Features Design and manufactured in Minneapolis, MN USA1-1/8" top (straight 1-1/8" or 1-1/2" to 1-1/8" taper) steer tubes only Material: 6061-T6 Aluminum Sizes: 5mm, 10mm, and 15mm internal cylinder wall heights Black aluminum bolt included Total weight (cap + bolt): 5mm= 12g, 10mm= 14g, 15mm=16g. Compared to a standard flat stem cap and steel bolt at 20 grams + spacers add even more. | Wolf Tooth Components | Ultralight Stem Cap With Integrated Spacer | Black | 5Mm Spacer | Aluminum