BMX Builder App

Purpose-built for BMX build planning, the BMX Builder App models rider input, frame sizing, and component data to produce repeatable, justification-ready results. It translates rider preferences into geometry targets, weight budgets, and a bill of materials that can guide procurement and assembly. The tool uses domain rules to ensure that suggested frames, parts, and tolerances align with common BMX configurations and performance goals. It emphasizes clarity, repeatability, and data traceability for shops and serious riders. Core logic centers on structured multi-field inputs, explicit validation rules, and transparent calculations. Geometry relies on BMX relationships such as top-tube length, standover height, and head angle to propose viable frame configurations. Weight estimates sum component masses with optional density-based adjustments, enabling quick sensitivity analyses. Compatibility checks confirm chainline, bottom bracket, headset, tire clearance, and frame/headset junction feasibility before presenting a BOM. The differentiator is domain-specific defaults and explicit validation for BMX constraints, plus exportable data suitable for procurement or further engineering analysis. This tool targets riders, mechanics, and shops seeking faster, more reliable build decisions with auditable numbers. It helps compare race, street, and park setups, supports scenario planning, and provides a clear data trail for decisions. The absence of UI elements in this description reflects the tool’s back-end logic focus, while outputs are designed to be consumed by procurement systems and engineering workflows.