What Our Gearhead® Experts Are Saying: "From ultra-long gravel races to fast CX laps, these are the most locked-in and efficient shoes I’ve worn. The dual BOA Li2 system dials in the fit perfectly, and the grip is unreal on slick hike-a-bike sections." We ride hard, train harder, and demand gear that matches our intensity—so we trust the Shimano XC903 S-PHYRE when it’s time to perform. Engineered for elite-level cross-country and cyclocross racers, this shoe doesn’t compromise. The dual BOA Li2 dials allow for ultra-precise fit adjustment, and the heel cup with anti-twist stabilization locks our foot in place for efficient power delivery through every punchy climb or all-out sprint. The carbon sole and low stack height midsole maximize stiffness and efficiency, while Shimano’s ULTREAD XC outsole grips slick terrain when the course forces us to dismount. With variable perforation zones for breathability and a surround-wrapping upper for glove-like comfort, the XC903 delivers podium-ready performance lap after lap.