Most gravel tires are just beefed-up road tires bolted onto whatever wheels you already own. The Goodyear XPLR Slick takes the opposite route: Zipp had Goodyear build it around one specific wheelset, so the tire and rim were developed together rather than adapted from road tech. That means one thing you need to know up front — this tire is designed for use with Zipp's 303 XPLR SW and S wheelsets, which run a 32mm internal TSS rim. It is not a general-purpose gravel tire for any frame or wheel.

The payoff for that narrow focus is speed. This is the fastest tire in the XPLR range, aimed squarely at gravel racing on smooth to moderate surfaces, and it performs best in dry conditions. A slick center tread keeps rolling resistance low across pavement and hardpack, while subtle shoulder blocks give you texture to lean on when the road turns. The whole system is built to cut vibration and preserve airflow, so you hold speed on firm terrain instead of bleeding watts to buzz and drag.

The casing is a 120 TPI construction paired with Goodyear's Dynamic:UHP compound, a formula that pulls from the brand's Eagle F1 road range to balance grip against rolling speed. Supple casings roll fast but bruise easily, so M:Wall reinforcement runs through the sidewalls to guard against cuts and pinch flats. That protection is what lets you drop pressure — the low-pressure setup is where the comfort and traction gains come from, and the M:Wall layer is your insurance against doing that on rough ground.... Read More