Mr Wooden is Brother Cycles’ all-purpose modern randonneur frameset: a gravel bike, tourer and off-road capable 650b rim brake build. It is designed around quick-release 650b wheels with clearance up to 650b x 50mm, uses double-butted 4130 chromoly steel with ED coating, and includes rack, mudguard and bottle mounts plus a low-mid trail fork for front luggage.

Source: https://www.brothercycles.com/shop/frames/mr-wooden/