Steel MINI BMX / ROAD BIKE headset
This headset fits 1" threaded forks. The bearing cups are 30.0mm in diameter where they press into the headtube - which means they WILL NOT FIT regular BMX frames. This is a Road Bike headset, which will also work on old school MINI BMX frames.
Size: For 1" threaded forks (BC1)
Diameter: 30mm bearing cups/27mm crown race, This is known as a "JIS" headset (as opposed to a ISO headset).
Stack Height: 24.5mm + 10.5mm = 35mm
Bearing: Caged: 5/32" X 8
Weight: 126 g