UltraSwim 33.3 #7Croatia, 16-19 May 2025 | World's Marathons

ultra33The family of carbon aero wheels is further enhanced with the 33 mm profile. Each component of this wheel has been optimized in the wind tunnel in orderUltraSwim 33.3 offers you the opportunity to complete the iconic 33.3km distance of the English Channel, spread over 5-7 swims, over a 4-day long weekend in stunning locations around the world.