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Detailed features
This block is one of Harken's smallest blocks. It is ideal for small synthetic fiber tuning lines on Hi-Tech dinghies. It features a patented bearing system that uses stainless steel balls captured in a groove
| Sheave diameter | Maximum rope diameter | Length | Weight | Maximum workload | Breaking load | |
| Simple | 16 mm | 5 mm | 38 mm | 12 g | 113 kg | 544 kg |
| Double | 16 mm | 5 mm | 54 mm | 28 g | 204 kg | 544 kg |
| Triple | 16 mm | 5 mm | 57 mm | 43 g | 318 kg | 544 kg |
In the same category
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<h2>Ronstan 20mm Single Orbit Pulley with Lashing</h2>
<div class="fiche-txt">No metal elements in these Orbit pulleys, everything is made of high tech polymer resin capable of supporting high loads. The special feature of the Orbit blocks is also the optimization of the ball track which frees up the central part of the block hub, thus limiting the weight and allowing the lashing to pass through the dyneema garcette. The 20 Orbit series can only be used on dinghy and catamaran trimmers up to 5 meters. Very light and able to support a working load of 250 kilos for a break of 550 kilios for a weight of 9 grams, it is one of the most performing blocks in its category.</div>
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<h2>Features of the Ronstan RF25109 Orbit 20mm Single Pulley with Lashing</h2>
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<p><span>This Harken pulley has a low coefficient of friction and is compact and lightweight. It is therefore ideal for windsurfers and dinghies or for low load trimming bumps.</span></p>
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<p style="text-align:justify;">This model is the first without rivets or metal shackles, this T2 carbo pulley is ultra-resistant and made of composite materials.</p>
<p class="PIN_1373379577617_hazClick" style="text-align:justify;">It is ideal when used for trimming cars, mainsheet or vang sheets, building stepped hoists or crow's feet and any other system requiring the use of light blocks</p>
<p class="PIN_1373379577617_hazClick" style="text-align:justify;">The removable loop is inserted into the head of the pulley, then passed around the fixed point for a perfect hold. Product supplied with Dyneema loop.</p>
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<p>Airblock low friction carbo pulleys are lightweight, rugged, reliable and affordable. This line of pulleys complements Harken's Black Magic pulleys.</p>
<p>This model has a very high workload to ensure safe and easy adjustment.</p>
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