Rope Strength vs Elongation
Richard Tregoweth, Thursday, November 27, 2025

Climbing rope specs often look confusing. Two ropes can appear very different—40 kN vs 23 kN strength, 2% vs 1.2% elongation—yet feel nearly the same in the tree.
That’s because the most commonly published elongation figure, “elongation at 10% MBS,” is ..


ART has issued two updates for the
