Which rope diameter is compatible with the CSR2 Pulley System?

• A. 8-10 mm rope
• B. 14-16 mm rope
• C. 5-7 mm rope
• D. 11-13 mm rope

Answer: (D)

Matching rope diameter to the pulley groove is essential for safe, efficient operation. The CSR2 Pulley System is designed to work with ropes in a specific range, where the rope fits snugly into the pulley groove and distributes load evenly across the sheave. An 11-13 mm rope provides the right balance: it fills the groove enough to prevent excessive movement or slipping, while still fitting the grooves and maintaining the required bend radius and tension characteristics. If the rope is smaller, it can slip or shift, increasing wear and reducing grip. If it’s larger, it may not seat properly or could bind, causing inefficiency or damage. So, the 11-13 mm diameter is the compatible choice.