Single block RT55UM-O

cheekball bearingmax. rope ø 14 mm

The RT55UM-O is a high-performance sailboat block designed for demanding applications. It features an over the top design, constructed from aluminum and torlon, and utilizes roller bearings for smooth operation. This block is engineered for high load and lightweight requirements, making it suitable for competitive sailing environments.

Main Features

• Over the top design for optimal line handling
• Aluminum and torlon construction for durability and reduced weight
• Roller bearing system ensures smooth and efficient rotation
• High load capacity suitable for demanding sailing conditions
• Lite block design for weight-sensitive applications

Technical Specifications

• Ø Sheave: 55mm
• Max Ø Line: 14mm
• Max Working Load: 1800Kg
• Breaking Load: 3600Kg
• Length: 71mm
• Weight: 170g