Torsional rope is a cost effective alternative to a custom cable for smaller racing and cruising boats. As its name implies, the torsional rope is cut from a roll and then terminated at the required length, around a thimble which fits your furling unit. A variety of termination methods are used: clamping, sewing or splicing and it is generally the quality of this termination that will define the overall quality and durability of your cable. Care should be taken when using torsional rope for top-down applications. Top-down furling requires high torsional performance and as a result it is important that there is sufficient cable diameter relative to the overall cable length to ensure adequate torsion. Therefore it is recommended to go up a size in diameter earlier for top-down than bottom-up (please refer to the selection guides in the individual product pages). Upffront is currently offering two well known suppliers of torsional rope: Marlow Ropes from England and Hampidjan from Iceland. The core of Marlow's ProDrive is K49 and offers a good all-round torsional rope for both bottom-up and top-down. Hampidjan use a Dyneema® core for their Dynex Furling product which offers an extremely lightweight cable but limits its use as a bottom-up cable to low load, cruising applications where cable stiffness is less critical.