Name: Carbo T2 lashing Ratchamatic pulley 57 mm - GRIP x 1.5
Brand: HARKEN
SKU: 2 167
Price: 104.00 USD
Availability: InStock

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Carbo T2 lashing Ratchamatic pulley 57 mm - GRIP x 1.5 - HARKEN

Thanks to its patented ratchet system and soft attachment, it combines lightness, extreme strength and ease of installation.

Length: 79 mm
Weight: 71 g
Maximum working load: 227 kg
Breaking load: 907 kg
Sheave Ø: 57 mm
Max rope Ø: 10 mm
Holding power: 15:1

The Ratchamatic mechanism automatically switches from free-rotating mode to ratchet mode as soon as tension is applied to the rope, ensuring optimal fluidity during rapid maneuvers, such as tacks or gybes. With its fiber-reinforced composite structure and aluminum sheave, this block stands out for its durability and featherlight weight, perfectly meeting the high demands of modern competition.

Innovative Ratchamatic system: automatic switching between free-rotating and ratchet mode for immediate control.
Spectra® soft attachment: low-profile installation, optimal deck adjustment, even with large rope diameters.
High strength thanks to the combination of composite materials and aluminum, while remaining ultra-light (71 g).
Integrated guide arrow on the cheeks to ensure impeccable and fast rope passage.
Versatility of use, ideal for mainsheet, spinnaker sheet on sport catamarans, dinghies and racing sailboats.

Optimize your settings and dominate the competition with Harken's Ratchamatic technology

SKU: 2 167 | Barcode: 097653284253

$104⁰⁰ USD $125⁰⁰

Length (mm) 79 mm
Length (in) 3 1/16 in
Weight (g) 71 g
Weight (oz) 2.5 oz
Maximum Working Load (kg) 227 kg
Maximum Working Load (lb) 500 lb
Breaking Load (kg) 907 kg
Breaking Load (lb) 2000 lb
Sheave Ø (mm) 57 mm
Sheave Ø (in) 2 1/4 in
Max. rope Ø (mm) 10 mm
Max. rope Ø (in) 3/8 in
Holding power 15:1

Our tips for choosing

Workload and breaking load

Choose your pulley based on the workload it will have to handle and the desired gear ratio. The orders of magnitude vary depending on the support: 400 to 500kg for the mainsheet or cunningham of an 18-foot catamaran, 100 to 200kg for the mainsheet or downhaul of a 420 dinghy for example.

Coefficient of friction

Modern ball bearing pulleys offer a much lower coefficient of friction than those without balls and are recommended for maneuvers that require constant adjustment (mainsail sheet, downhaul, cunningham, spinnaker essentially).

Restraining force

For the mainsheet which is not always fully tightened, or even never on some boats which require constant adjustment (29er, 49er, Class A,...) as for the spinnaker sheet, favor automatic or non-automatic winch pulleys, which considerably save muscles and gloves thanks to a retention that can go up to 70% of the workload.

Sheave diameter

Choose the diameter of the pulley according to the diameter of the rope it will guide. For example, depending on the support and workload, a 40 or 57 sheave is very suitable for a 6 to 10mm mainsail sheet. For Cunningham or downhaul type maneuvers, 16 or 22 sheaves are suitable.

Material

Stainless steel, carbon, composite, it's essentially a matter of weight, with an impact on the price: it all depends on the importance you attach to it. If the pulley is to guide a cable, use aluminum sheaves which will be much more resistant than composite materials.