Zipp: Zipp’s 353 NSW Tubeless Disc brake is the pinnacle wheelset for today’s endurance rider and road racer. Zipp’s most advanced wheelset in every performance area, the 353 NSW also is Zipp’s first SRAM AXS-connected wheelset. Designed for racers, it’s a lightweight climber’s wheel that comes with ceramic bearings and Zipp’s most advanced rim technology for impressive durability and aero performance. The 353 NSW rim seamlessly integrates the Zipp AXS Wheel Sensor for accurate on-bike tire-pressure monitoring. It allows you to monitor and analyze tire pressure in real-time without an external device mounted to the valve stem. Fine-tuning tire pressure helps riders optimize speed and performance in an ever-changing riding environment. Before you ride, check your pressure immediately; green light means good to go. During the ride, monitor pressure to dial in your ideal setting and detect issues early. Strong just got stronger for Zipp’s lightest wheelset. A revised carbon layup and design infused the already strong 353 NSW with a more than 16 percent higher rim impact strength. With its undulating 35/40mm deep rim shape, the 353 NSW provides speed on the valley road, the mountain climb, and the descent with excellent rolling resistance, crosswind stability, and feather-light weight. The 353 NSW features the premium ZR1 SL hubset with ceramic bearings and 66 points of engagement smooth rolling. The hubset also is 30 g lighter than the predecessor hub in NSW wheels. The 353 NSW is optimized for 30mm tires, with great options available from Goodyear Fitment Series for Zipp tires made exclusively for Zipp. The 353 NSW is not approved for gravel riding. Features Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile First integrated, connected SRAM AXS wheel with Zipp AXS Wheel Sensor, with ability to monitor pressure with specially designed tube. ZR1 SL hubset with ceramic bearings Optimized for 30mm tires TSE for greater efficiency and reduced rolling resistance Sawtooth rim with Hyperfoil nodes and HexFin ABLC dimple pattern for top aero and crosswind-stability performance with an undulating rim depth Center locking rotor interface. Lockring is included with the wheels. XDR or SRAM/Shimano driver bodies Campagnolo driver body sold separately Lifetime warranty Specifications Orientation (wheels): Front Size (wheels): 700c Rim construction: Carbon Hookless Tyre compatibility: Tubeless tyres only Rim depth: 40mm Surface texture: ABLC HexFin Brake compatibility : Disc (Centre Lock) Rim - inside width: 25mm Rim profile: Symmetrical Rim finish: UD fibre, Impress technology Nipple material: Aluminium Nipple anti-rotation: Sapim Secure-Loc Spoke type: CX-Ray - Black Spoke count: 20 Spoke pattern: 2 Cross Hub: ZR1 SL Colour (Decal): Standard Colour (hub): Black Axle type (wheels): TA 12x100 Axle material: Aluminium front & rear Bearings: Cartridge - Ceramic Max tyre pressure: 73psi / 5.0bar Max recommended system weight: 250lbs / 114kg Spoke length DS: 276mm Spoke length NDS: 278mm Max outside width: 30mm