The lowest friction block Harken has produced. Harken's Titanium Roller Airblock's (TTR) have a 98% efficiency rating, making it easier for trimmers to be more effective. High load bearing block that is incredibly lightweight and was developed to withstand the demands of the America's Cup.
Soft Loop attachments provide the block's primary load-bearing strength, allowing the TTR to be attached in a variety of locations. Roller bearings are made of Titanium which handles the bearing load, while the snap-fit Torlon® ball barings carry the side loads. Outer and inner races are made of titanium for lightweight strength. Comes apart with Allen wrench for maintenance.