The Tachyon Ash 11.5mm x 150 ft climbing Rope w/One spLIFE eye splice. The Tachyon from Teufelberger is one of the most successful climbing ropes among the 24-strand ropes. Tachyon is provided with a firm yet flexible construction. It consists of a polyester cover which significantly improves friction hitch performance without "bagginess". Certified to EN 1891A as well as ANSI Z133-2012.