Grand Cru Rinko Headsets. Rinko is a form of touring cycling that's popular in Japan. It involves travelling on a train with your bike in order to reach a cycling destination. If the bike's wheels and fork are removed and all is placed in a lightweight nylon bag, the bag can go as regular luggage in the train's passenger compartment. I first wrote about rinko here. But quickly removing the wheels and fork is a simple way to pack a bike for car or plane travel as well. And a lot less expensive than couplers.
So the idea of a rinko headset is to facilitate removing the fork without tools. It 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. They are available in 1" threaded ISO and JIS sizes
Our rinko headset was developed in conjunction with M's-Bicyclette of Japan. It's primarily for the Japanese market, but we have some in stock here for other customers.