The Zipp 303 XPLR S rear wheel brings high-performance gravel technology to riders wanting a fast, durable upgrade without the premium price tag. Built around a wide and deep rim profile, it is designed to work with approved gravel tyres for lower pressures, reduced vibration and improved grip across rough terrain. The 32mm internal width helps increase air volume for better control and rolling efficiency, while the aerodynamic profile is shaped to integrate cleanly with gravel tyres for increased speed on fast mixed-surface rides. Features • Fast and robust gravel rear wheel • Hookless Tubeless Straight Side rim construction • Ultra-wide 32mm internal rim width • Designed for approved 40c–60c TLR tyres • Wide and deep rim profile for aerodynamic efficiency • Supports lower tyre pressures for improved grip and reduced vibration • Applies Zipp Total System Efficiency to gravel riding • 24-hole 2-cross build • CX Sprint spokes • Disc brake compatible with Centre Lock fitment • Ships with 12mm rear end caps • Lifetime Warranty Specifications Wheel Size: 700c Rim Construction: Hookless/Tubeless Straight Side (TSS) Tyre Compatibility: Approved TLR tyres 40c–60c with tube or sealant Rim Depth: 54mm Internal Rim Width: 32mm Max Outside Width: 40mm Brake Compatibility: Disc, Centre Lock Rim Profile: Symmetrical Nipple Material: Brass Spoke Type: CX Sprint Spoke Count: 24 Spoke Pattern: 2 Cross Driver Body Type: SRAM XDR, SRAM/Shimano Road Axle Type: TA 12x142 Bearings: Cartridge, Carbon Steel Max Tyre Pressure: 50psi / 3.45bar Max Recommended System Weight: 135kg