Brother Cycles Pinecone Frameset

The Pinecone is Brother Cycles’ all-steel, all-terrain frameset with retro mountain bike inspiration and modern practicality. It is made from heat-treated 4130 chromoly, can be built with rim or disc brakes, uses horizontal quick-release dropouts, and is designed for 650b wheels with generous tyre clearance while also allowing 700c or 26in disc builds.

Source: https://fahrradfit.com/shop/frames/pinecone/