The Barton Backstay Tensioner System is a block & tackle system designed for use on twin or split backstays.

It features a stainless steel double block with brass sheaves, together with tensioning blocks from the size 2 range of Barton Blocks. A strong, lightweight range of blocks for use on dinghies and dayboats or as lead blocks on larger craft.

• Sheave Size: 45mm
• Sheave Width: 8mm
• Rope Size: 5mm
• Wire Size: 5mm
• Break Load: 1300kg
• SWL: 650kg
• Weight:163g 

Plain bearing blocks: 
Barton plain bearing blocks have a precision moulded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads.