The Zipp 303 XPLR SW Gravel Tubeless Disc Rear Wheel is designed to redefine speed and efficiency in the toughest gravel racing environments. Unlike conventional gravel wheels adapted from road platforms, the 303 XPLR SW was purpose-built for gravel performance, applying Zipp’s Total System Efficiency (TSE) approach to counter the unique resistance challenges of loose surfaces, rough terrain, and vibration loss. With a 32mm internal rim width, the wheel allows riders to run lower tire pressures—often under 30 psi—without compromising stability, resulting in reduced rolling resistance, greater traction on climbs, and more control in corners. The 54mm rim depth and 40mm max external width create a seamless aerodynamic interface with modern gravel tires, cutting drag while maintaining stability in crosswinds. Optimized for approved tubeless tires in the 40c–60c range, including Goodyear’s XPLR Slick and Inter models, this wheel is tuned for speed, comfort, and control on race day or long adventure rides.

At the center of its performance is Zipp’s advanced ZR1 DB hub, precision-engineered in Germany to deliver smooth, durable, and highly responsive engagement. Featuring improved seals for longevity and 66 points of engagement, the hub ensures instant power transfer, critical for accelerating out of corners or powering over steep gravel climbs. The 24 Sapim CX-Ray spokes, laced in a 2-cross pattern, strike an ideal balance between lateral stiffness and vibration absorption, further reducing fatigue over demanding courses. Disc brake compatibility is provided through a center-lock rotor interface, with lockrings included for simple setup. The 303 XPLR SW is also highly versatile when it comes to drivetrain compatibility, shipping with XDR and SRAM/Shimano driver bodies, while supporting Campagnolo N3W as a separate option. With thru-axle standards (TA 12x100mm front, TA 12x142mm rear) and a lightweight carbon hookless rim construction, the 303 XPLR SW delivers uncompromising performance in a race-ready package.

Weighing just 1452 grams for the complete set, including tape and valves, the 303 XPLR SW is remarkably lightweight given its wide, deep aero profile. Riders benefit not only from efficiency and speed but also from reduced fatigue on long gravel events, thanks to its ability to smooth vibrations and maintain consistent traction. With a maximum tire pressure rating of 50 psi and a rider-plus-gear system weight limit of 298 lbs (135 kg), the wheel is built for durability without sacrificing speed. Finished in Zipp’s UD fiber carbon with Impress graphics and adhesive decals, the 303 XPLR SW looks as fast as it rides. Backed by a lifetime warranty, it represents the ultimate blend of aerodynamics, compliance, and strength, making it the fastest and most advanced gravel racing wheel Zipp has ever created.