Now known as the Ion2 BiColor, it still has a unique construction and different than any rope on the market. This new design gives the rope a UIAA fall rating of 5 and its impact force goes from 8.6kN to 8.1kN. The diameter measures in at 9.4mm now and we were able to drop 3 grams per meter, making the Ion2 only 57 grams per meter.