Broakland Fixed Hub Disc Adapter v2
I first spied the Broakland fixed hub disc adapter back in October ’09, and it generated a ton of comments in the post back then. The adapter is designed to mount a 6-bolt disc rotor on the fixed or freewheel threading of a double sided track hub without permanent modification, providing a solution for custom builds or retrofits of 120 mm rear spacing and disc brakes. Admittedly a rare frame configuration, they are nontheless out there with few compatible stock hub choices available. The adapter fits 1.37″ x 24 tpi track cog and freewheel threads and has a lockring tool notch in order to install and remove it even though you can effectively use the brake caliper and rotor as a removal tool as well. The Broakland adapter is available in either a $35 aluminum or $55 stainless version, with the fancy yet not strictly necessary reverse thread lockring another $35. Contact Montano Velo for purchase.