Name: Micro Block triple + cleat 423
Brand: HARKEN
Price: 133.62 EUR
Availability: InStock

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Micro Block triple + cleat 423 - HARKEN

Micro Block triple + 423 cleat: ultra-compact and lightweight design & low coefficient of friction. Enjoy Harken quality.

More details

It is specially designed for windsurfing, dinghies, and low-load adjustment tackles, offering unparalleled versatility.

Length: 51 mm (2 in)
Sheave Ø: 22 mm (7/8 in)
Weight: 99 g (3.5 oz)
Max rope Ø: 6 mm (1/4 in)
Maximum working load: 227 kg (500 lb)
Breaking load: 544 kg (1200 lb)

Harken Micro Block 22 mm pulleys are characterized by their ultra-compact size and light weight, while maintaining exceptional strength. Harken technology ensures smooth and effortless use, even under high tension.

Thanks to its superior quality materials, the Micro Block 22 mm ensures a long service life and constant efficiency. Its light weight does not weigh down your equipment, while maintaining a robustness capable of resisting a breaking load of 544 kg with perfect compatibility with ropes up to 6 mm.

Ultra-compact and lightweight design suitable for confined spaces
Very low friction coefficient for better adjustment efficiency
High quality materials for remarkable durability and resistance
Easy to install and use
Compatible with a wide range of ropes to suit all needs

SKU: 230 | Barcode: 097653008439

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€133⁶² EUR

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Length (in) 2 in
Sheave Ø (mm) 22 mm
Sheave Ø (in) 7/8 in
Length (mm) 51 mm
Weight (g) 99 g
Weight (oz) 3.5 oz
Max. rope Ø (mm) 6 mm
Max. rope Ø (in) 1/4 in
Maximum working load (kg) 227 kg
Maximum working load (lb) 500 lb
Breaking load (kg) 544 kg
Breaking load (lb) 1200 lb

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.