RDM - Reduced Diameter Mast
The SUMO mast is slightly stiffer than the Original Skinny and was our test to see if we could make an even more bomber mast, with little weight penalty. We succeeded.
The SUMO is the most durable mast on the planet and is popular amongst sailors looking for a “stiffer,” more powered rig. Hardcore wave sailors, freestyle riders, and larger riders can benefit from the SUMO mast.
If you’re sick of snapping masts, the SUMO is for you.
The SUMO has a constant curve bend that drives the performance of a wide variety of sail brands (see graphic below.)