A bare steel bicycle frame with brass lugs standing on a steel workbench beside a clamp stand, two spanners and a brass tag, shelves of tools behind in a dim workshop
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Lugged Steel

A steel frame cut to your height, turning on the bench

Unlimitedheight-sized 3D framegeometry change tableenamel shader sweepsaved builds drawer

Slop-free 100desktop and mobile · checked 14 Oct

Prompt · tuned for Lovable

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Why per-tool prompts: Lovable needs component-level instructions, Bolt prefers a single spec, Cursor wants file structure, Codex a task brief that ends in checks. Each tab is written for its tool: same design, 5 dialects.

What this prompt builds

A bare lugged frame turns on a framebuilder's bench as you scroll. Give your height and a frame built in code resizes, while the geometry table marks every tube that changed and by how many millimetres. Pick tubing, enamel and groupset, watch the price count, and save builds on brass tags to compare later.

Paste it into Lovable, Bolt, Cursor, Claude or Codex, then change the copy, colours and footage to make it yours. Scroll the live demo to see exactly what it builds.

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