G-sports super tough front hub. The Roloway hub has a lightweight and strong designed for street use. 7075 aluminum shell with angled flanges to prevent bending and oversized bearings. 20mm aluminum axle (fits 10mm dropouts) with helicoiled threads to prevent threading and 3/8 grade 8 bolts. Comes with replaceable press fit plastic hub guard. Axle: 3/8x24tpi Female Bolts. Bearing Size: 2x 6804. Weight: 340g / 12oz.