Koski 1st Dura Trac blades timeline.. im Album #l Early Days Aluminum & Steel Homage (Race ATB, DH Klunking wide bar n big wheels research)🔧🔗

The THE "unicrown" KOSKI forkblades predated any others and while there were not drawn by Cunningham as the run Fisher and Kelly ordered for Tom Ritchey they also are less refined compared to later ones available since 1983 as a proper Cunningham design which he calls typelll forks in his Infopack ..

But they worked and were mentioned in the original TRAILMASTER catalog as an 1980 available document from the Cove bike shop in Tiburon.

Photocredit: Ken Beach of Gecko Cycles