BikeBuilder Beta

Start with the beta builder.

For beta testing, use the frame-first Beta Builder as the default path. The guided and advanced builders remain available when you want a different workflow.

Recommended Beta Path

Beta Builder

Start here for the current beta experience: a frame-first modern MTB flow with live compatibility feedback for rear derailleur, cassette, chain, rear hub, and brakes.

Frame firstLive checksMinimal UI

Start Beta Builder