KustomCaps BESPOKE headset caps are made from 100% copper, stainless steel, brass and other interesting high-end metals. They are finished using a variety of techniques including deep engraving, ghost etching, frequency etching, color fill, etc. They are designed to fit 1 1/8" headsets and measure 1 1/4" (32mm) in diameter. (This is the most common size on modern bicycles.)
These caps are flat across the top and weigh from 15-17 grams. Our headset bolts are made of 7075 aluminum are M6 x 30mm in size and weigh 3 grams.
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PLEASE NOTE: Bespoke caps feature raw, unsealed metal surfaces some of which (copper and brass) may interact with hand oils and the elements. The finish will change and patina over time (this looks cool).