Sump and Spoke

Sump and Spoke

Custom bikes, from the frame up

Design a frame in 3D, from rake and wheelbase to the engine, the tank and the pipes, and export a spec sheet a builder can work from. Pieces are written by mechanics and riders.

Open the frame builder Gallery

Contributors

Mechanics and riders

They record a piece and send photos. We edit. They approve it before it is published. How a piece gets here.