TNT Derringer Sealed BMX Flip/Flop Freewheel Hubset - 3/8" axles - 28h - Silver Canti/U-/Sidepull Brake This is just the axle

This is just the axle

Rear hub is a single speed cassette that works with Shimano type cogs (16t included) and 6-bolt disc brake rotor (not included)

This is a perfect tire for scooters and small kids' bikes

Color: Silver anodized

TNT Derringer Sealed BMX Flip/Flop Freewheel Hubset - 3/8" axles - 28h - Silver Canti/U-/Sidepull Brake This is just the axleThese are 28 hole, small 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, and the axles are 3 8". hub shell is manufactured from high quality aircraft quality aluminum sealed bearings 4130 chromoly 3 8 inch axle aluminum locking collars oversized