What Prusik size is recommended for an 11 mm rope?

What Prusik size is recommended for an 11 mm rope?

• A. 7mm
• B. 8mm
• C. 9mm
• D. 10mm

Answer: (B)

A Prusik should bite reliably on the rope when loaded but still release when you stop pulling. For an 11 mm rope, an 8 mm Prusik cord hits a practical balance: it’s large enough to grip well on the thicker rope, yet not so large that it becomes hard to slide or release. That middle-ground size is why 8 mm is commonly recommended for 11 mm rope. Smaller options may not bite consistently on this rope diameter, while larger ones can grip too aggressively or be cumbersome to release.

A Prusik should bite reliably on the rope when loaded but still release when you stop pulling. For an 11 mm rope, an 8 mm Prusik cord hits a practical balance: it’s large enough to grip well on the thicker rope, yet not so large that it becomes hard to slide or release. That middle-ground size is why 8 mm is commonly recommended for 11 mm rope. Smaller options may not bite consistently on this rope diameter, while larger ones can grip too aggressively or be cumbersome to release.