CYCLOPS MARINE Smarttune 5/8”, TS58B Block Size_16 mm High-load sheaves are offered as

High-load sheaves are offered as replacement parts or for use in special applications

is designed to elevate and angle blocks or fittings for optimal line lead

Designed for small-diameter lines favored by racers

Bases include stand-up springs and a U-Adaptor to accept a variety of appropriate blocks

or shrouds where wire is used or for rope where loads are too high for regular bullet blocks

CYCLOPS MARINE Smarttune 5/8”, TS58B Block Size_16 mm High-load sheaves are offered assmarttune sensors are designed to replace your existing turnscrews (forestay backstay shrouds diagonals) and feed live load data wirelessly to your phone, or (with the addition of a Cyclops Marine Gateway) to most on board electronics systems. smarttune is currently available in five sizes for use on boats from a wide variety of classes (sizes represent turnscrew measurements).