Single block A2020
with forkwith ball bearingmax. rope ø 6 mm

single block
single block
single block
single block
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Number of sheaves
with fork
Bearing type
with ball bearing
Maximum line diameter
max. rope ø 6 mm
Application domain
for sailboats
stainless steel
Working load

115 kg (253.5 lb)

Breaking load

540 kg (1,190.5 lb)


Allen 20mm Dynamic Blocks feature the patented Allen Dynamic bearing system which provides an unrivalled weight to performance ratio. This is coupled with our high strength and rope friendly stainless steel ultra-strap; making them amongst the strongest and most reliable ball bearing blocks on the market. The range is available with different types of accessories including lacing eyes, hooks, swivels and cleats. The range also features a central rivet that provides great options as a tie on becket. You’ll find a 20mm block to suit most control line applications.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.