Upcycled Bullseye Bicycle Headset Cap

Bullseyes are simple, but they look cool. We like them so much we make this one in our UPCYCLED finish as well as a Bullseye Headset Cap in copper and a "ghost" version also in copper. PLEASE NOTE: Upcycled caps are raw, unsealed aluminum. Their appearance may be affected by continuous exposure to salt air and salt water.

For more details, click on "Specs & Measurements" below. Any other questions, check out our FAQs, send us an email, visit the blog or hit us up in the chat!


In our UPCYCLED series, we repurpose our "mistake" stem caps by carefully machining off the very thin top anodization layer leaving a cool, raw aluminum finish. Then we relaser them using a variety of techniques. The cap inner barrels and backs will still be anodized, and colors will vary.

They are flat across the top, made of 6061 aluminum and weigh 5 grams.

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.

These caps are flat across the top and weigh from 15-17 grams.

Our UPCYCLED & BESPOKE Caps are designed to fit 1 1/8" headsets. They measure 1 1/4" (32mm) in diameter. This is the most common size on Road, MTB, Singlespeed, BMX bikes & more!

KustomCaps Headset Bolts are made of 7075 aluminum are M6 x 30mm and weigh 3 grams.