The 353 NSW is not only Zipp's most advanced wheelset across all performance areas, but also the first wheelset from Zipp with SRAM AXS connectivity. It was designed for road racing professionals and is a lightweight wheel for climbers, featuring ceramic bearings and Zipp's most advanced rim technology for impressive durability and aerodynamics. The 353 NSW rim is directly connected to the Zipp AXS wheel sensor, which accurately monitors tire pressure while riding. This allows you to track and analyze tire pressure in real-time without needing an external device attached to the valve stem. Fine-tuning tire pressure helps riders optimize speed and performance in a constantly changing environment. Before your ride, you should check the pressure immediately; a green light means you're good to go. Check the pressure during your ride to find your ideal setting and detect issues early. Zipp's lightest wheelset is now even stronger. An updated carbon layup and design have increased the already strong 353 NSW's rim impact resistance by more than 16 percent. With its wavy, 35/40 mm high rim shape, the 353 NSW provides speed on the road, in the mountains, and during descents, while offering excellent rolling resistance, side wind stability, and featherlight weight. The 353 NSW is equipped with the ZR1 SL Premium hub set with ceramic bearings and 66 engagement points. The hub set is also 30 g lighter than the previous hub in the NSW wheelsets. The 353 NSW is optimized for 30 mm tires. The 353 NSW is not approved for gravel use.