Shimano SH-XC903 S-Phyre Shoes - Black bikes Hardened steel / Aluminum /

Hardened steel / Aluminum / Engineering grade polymer

8 enhances exogenous CHO oxidation compared with 2:1 ratio by 17% (O’Brien et al) and 10% (O’Brien et al)

The durable composite body features our iconic three-way wrench shape and prevents scratching of expensive components

Compatible with the following SRAM road disc brakes: Hydraulic Road Disc

Shimano SH-XC903 S-Phyre Shoes - Black bikes Hardened steel / Aluminum /Designed for world class cross country and cyclocross racers, the S PHYRE XC903 cycling shoes deliver superb all day ride comfort and complete foot security for more efficient peddling performance. Features Shimanos premier lightweight off road cycling shoe, the S PHYRE XC903 is built to thrive in the most challenging race conditions Race Tuned Closure System: Dual low profile BOA Li2 dials permit precise micro adjustment, while shielded bottom dial