Zipp 303 XPLR S Tubeless Disc WheelsThe Zipp 303 XPLR S is big upgrade for gravel riders without a big price tag. This wheelset borrows key innovations from Zipp's premium wide gravel wheelset, it is affordable and robust for discerning gravel riders. This wheelset is the fastest on gravel, thanks to its mega wide rim that integrates seamlessly with approved gravel racing tires.* In gravel, resistance and vibrations from bumpy surfaces create a barrier that slows riders down. To combat