FLY BIKES Front Hub features a CNC machined 7075 aluminum hub shell with wide set flanges to increase spoke support, precision sealed bearings and aluminum center axle. Each hub can be fitted both sides with the Flybikes hub guards to protect them when using pegs."" - 7075 CNC machined shell - Micro flanges with sink spoke holes and wider flanges distance. - 4130 Chromoly Micro hub guard - Hub: 215grs. / 7.58oz."Product Code: FL-FHUB36-ALU