The Eclat E440 Seismic front wheel is built using a 36H Eclat E440 double-wall rim laced 3X with black 14G spokes and nipples to a Eclat Seismic front hub. The Eclat Seismic front hub features a 6061-T6 aluminum hub shell with a 4130 chromoly female axle and 3/8" axle bolts. Includes hub guards.