The idea of a rinko headset is to facilitate removing the fork without needing tools to do it. A Rinko headset has teeth that keep the important parts from spinning and a knurled top cap for easy removal. The top cap also has holes for a pin wrench in case you over-tighten it. So far as we know, this is the first sealed cartridge bearing Rinko headset. The cartridges are held in place with spring clips. The body is steel to resist damage when disassembled.

1" headset ISO standard.