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The reference mast extension for high tension race sails is also great for recreational windsurfers
and even larger riders can benefit from the Sumo mast
This helps us get the stiffness needed while not taking a weight penalty
Included Adjustable Outhaul kits and Wide Tail backend with Race booms and Carbon Slalom 170
This is an RDM specific boom head that is lighter and stiffer than anything else on the market
RDM Shim/Adaptor for Chinook, Aeron, Naish, Simmer Booms fin The reference mast extension forThis is a clip in style RDM adaptor shim for older style HPL Pro Level Boom Heads. This style adaptor was also used by Aeron OEM booms like Naish, Simmer, Pro Limit, etc Fits boom heads with approx 3 1 8" (8cm) mast cup.