The lightweight 40 mm Optimist SILVER regatta boom from Optiparts is much stiffer than the 32mm school boom and will allow the Optimist sailor to put more tension on the leach. Optiparts Part Number...
Outboard end for 40 mm racing boom (EX940). All boom end fittings are made of high quality glass fibre filled nylon. Diameters given are outside tube diameters. Optiparts Part # EX1282