Thanks to the latest advancements in Reserve’s carbon layup process, the 34/37 SL wheels are lighter than ever without sacrificing any strength. Designed for Team Visma Lease-a-Bike, these wheels are made to lead the peloton up the world’s steepest, most unrelenting climbs. While the 34/37 SL wheels are built to climb, climbing isn’t just about weight. A mixed rim profile of 34mm front and 37mm rear maximizes aerodynamic efficiency, while reinforced carbon spoke holes maintain stiffness and strength. Engineered to win in the mountains.