Severne HD SDM Extension

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SEVERNE HD 24cm & 36 cm SDM windsurf extension HD stands for Heavy Duty. Race Extension HD FUNCTION AND RELIABILITY. Solid Aluminium tubes combined with triple pulleys for friction free high tension downhauling.Severne offers 3 sizes of the HD extension to compliment the race and freeride range. Stainless steel Automatic collar Stainless steel button and Mechanism DCM setting Internal metal chassis Unique severne geometry pulley alignment Show more