If you are looking to build a singlespeed ‘cross race bike, or a singlespeed mountain bike, and anything in between, you can run your favorite 30mm spindle cranks with the BEER Components Oner, as long as your frame has a PF30 shell. Recently, I swapped out the older 24mm Sugino cranks and Problem Solvers bottom bracket for the BEER Oner and White Industries cranks on my Urban Racer.
