Pick parts and the engine checks every pairing live — sockets, mounts, quick-releases, clearances — from sourced specs. Verified conflicts block; missing data says "couldn't verify" instead of guessing. Start from a preset, take the quiz, or build from scratch, then save to get a share link.
Detail:Full scores, badges, and compatibility detail.
Slot
Selection
Price
Status
Wheelbases*(core slot, required)A wheelbase is the single component that defines how your rig feels, so the buying decision turns mostly on peak torque, the drive type, and which ecosystem you're committing to.
Steering Wheels*(core slot, required)Steering wheels split into two questions: which quick-release ecosystem you're locked into, and what style of racing you do.
Cockpits*(core slot, required)A cockpit's job is to stay dead still while a direct-drive base tries to twist it, so rigidity is the spec that matters most — and it scales with how the rig is built.