Sign In
HARKEN
57mm Carbo Ratchet Blocks
We Won't Be Beat—Low Price Guarantee
West Marine will gladly match most U.S. based competitor's price on identical, in-stock items within 30 days of purchase.
Learn More
57mm Carbo Ratchet Blocks
Control loaded lines with ease
Lightweight Carbo Ratchets are available in 40mm, 57mm, and 75mm sizes. The 40mm blocks are perfect for jibsheets and spinnakers on small dinghies where size and weight are critical. 57mm and 75mm sizes have many configurations to fit jibsheets, spinnakers, and mainsheet systems on boats ranging from dinghies to large sportboats. All the Carbo Ratchets feature a recessed On-Off switch that is easily operated from either side. The Cheek Block is also switch-controlled. The 40mm cam-arm versions work in ratchet mode only.
- Sheave: Hardkote anodized eight-sided aluminum
- Sheave Size: 1-9/16" (40mm)
- Ball Bearings: Engineered plastic in fitted ball races
- Line Diameter: 3/8"
- Cheek Material/Finish: Long-glass reinforced engineered nylon
- Shackle/Strap Type: Stainless swivel shackle
57mm Carbo Ratchet Blocks
Product Specs
The West Advisor
The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.
