TNT Derringer Sealed BMX Flip/Flop Freewheel Hubset - 28h - 3/8" - Blue BMX It is a basic repair

It is a basic repair part

High quality loose-ball  bearings are used for smooth action

be sure to include it in your checkout notes

4130 chromoly 3/8 inch axle

TNT Derringer Sealed BMX Flip/Flop Freewheel Hubset - 28h - 3/8" - Blue BMX It is a basic repairThis set of TNT BMX Derringer Hubs is 28 hole small flange, flip flop, sealed cartridge bearing aluminum hubs. These 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, and the axles are 3 8". hub shell is manufactured from high quality aircraft quality aluminum sealed bearings 4130 chromolly 3 8 inch axle aluminum