TNT Revolver Sealed BMX Flip/Flop Freewheel Hubset - 36h - 3/8" axles - Green 31.2mm Spindle Material: Heat Treated Chromoly

Spindle Material: Heat Treated Chromoly Steel

Pressure Rating: 85-100psi

These will work with single speed thread-on freewheels that are 13t and larger

Color: Purple anodized

then you will be better served with a CrMo spindle

TNT Revolver Sealed BMX Flip/Flop Freewheel Hubset - 36h - 3/8" axles - Green 31.2mm Spindle Material: Heat Treated ChromolyThese are 36 hole large flange, flip flop, sealed cartridge bearing aluminum hubs. They will work with single speed thread on freewheels that are 13t and larger. The one side is threaded 30mm x 1 and the other side is threaded 1. 37 x 24. The OLD is 100mm front and 110mm rear. hub shell is manufactured from high quality aircraft quality aluminum sealed bearings 4130 chromoly 3 8 inch axle aluminum locking collars oversized aluminum axle nuts 36H front