IFJ_012021_performancefibers_Ropes Ken Norberg February 16, 2021 14 Views The ability to replace steel with high-strength fibers like Dyneema has resulted in ropes that have 75% less weight and have ten times the lifetime. Photo courtesy of Marlow Ropes The ability to replace steel with high-strength fibers like Dyneema has resulted in ropes that have 75% less weight and have ten times the lifetime. Photo courtesy of Marlow Ropes