Trozza boom Optimist 40mm. The trozza is made of nylon, reinforced with glass fiber of high quality to guarantee a firm grip and sliding around the shaft. The diameter listed is the internal one.
The block of the peak for the Optimist in nylon reinforced with glass fibre, attack stainless steel and the pulley in aluminium, perfect for the tree Class.
This wind indicator from Windesign Sailing has a sturdier arm that is carefully balanced and offers amazing sensitivity. The flap arm of both low-friction indicators is now secured to the needle with a new positive locking system that prevents the flap arm from loosening.