The FX front hub was designed from the ground up, with modern street in mind. Thicker angled hub flanges optimize the spoke line, creating a stiff wheelset that is protected from grinds with the included Cinema CF nylon hub guards. The recessed bearings remove any chance of bearing seat stretch and ensure the hub continues to roll smooth. A 15mm chromoly inner axle provides plenty of strength for all the grinds you can throw at it ###section### Product Specs AXLE SIZE: Female SPOKE HOLES: BEARINGS: Sealed WEIGHT: 340g / 11.9oz