BOX Box Two Standard 1 1/8 Headset

The Box Two Threadless Alloy 45×45 headset has an all-aluminum construction resulting in a lightweight yet durable headset
Each headset is fitted with super-smooth rolling, precision, 45×45 angular-contact sealed bearings
Because this versatile headset has 45×45 angular-contact bearings, you can use the included cups and install it in frames with standard head tubes. Or, leave the cup in the box, and use it as an integrated headset