severne sails alu race alu gabelbaumWe present the Severne Sails ALU RACE Alu Boom. Severne has made racing more affordable by introducing the stiffest aluminum race boom on the market. This groundbreaking design was achieved through optimized wall thicknesses and a larger diameter at the rear of the boom. SPECS Size Diameter Head Material Weight 220 cm 29 33. 3 mm SDM T8 aluminum 3. 91 kg 250 cm 29 33. 3 mm SDM T8 Aluminum 4. 24 kg