Ronstan’s high-performance Series 55 Orbit BB Blocks incorporate unique bearing systems, super light, all-composite materials, innovative head fittings and a sleek design for the highest strength-to-weight ratio available. Precision design provides the optimum number of ball bearings in critically loaded areas, eliminates them in inactive areas and reduces ineffective mass, creating the 2-stage bearing system for durability and low-friction performance. The use of a flexible Dyneema® rope link is a product of trends in grand prix ocean racing and provides a more flexible, lighter weight and lower-profile solution than traditional shackles. It can be set at a 0- or 90-degree orientation, provides stress-free articulation without allowing the block to over-rotate, and is locked in place with a security clip that doesn’t require tools to fit.
