The bobbin duracork grips duracork grips combine the classic look of cork with a durable modern material that makes for a strong grip that has got the comfort and style of cork duracork doesn39t crack tear or crumble like traditional cork impervious to rain and other harsh elements these larger grips add a confidence inspiring feel on the handlebar and greater ride comfort overall bobbin duracork grips features made from a natural non slip rubber and cork compound impe