The Neptune Helm Sprocket is made from 6061 Aluminum in the USA. Available in lots of sizes and colors with a great retro look. Perfect for those working on a vintage bike yet plenty tough enough for today's style of riding.

****ANODIZING SHADES VARY****

• CNC machined from 6061 aluminum alloy

• Fits 19mm spindle 3-piece cranks with no adapter needed

• Available in many sizes.

• Available in anodized black, blue, red and silver

• MADE IN THE USA