The Harken 5.0T Alum Loop V Block with Wide Sheave is a game-changing addition to the brand's loop block series, specifically designed for high-performance Grand-Prix racers. By incorporating V-shaped titanium rollers, Harken engineers have optimized the mechanics by combining the axial and thrust bearings into one single bearing set. This results in a lightweight yet robust block with exceptional efficiency at high loads, while effortlessly gliding under low loads for easy release in light winds. The block features aluminum sideplates, a titanium sheave, and captive titanium roller bearings. Its wide sheave is capable of accommodating multiple lines for quick sail changes or a single, high-load larger line that requires a small deflection. Moreover, the V block is easy to disassemble for regular inspection and maintenance. Part No. 3362AL, this 5T Aluminum V Block has a sheave diameter of 62mm (2 7/16 in) and maximum working load of