Get bike valuation

Bike valuation summary. Primary basis is measured UK asking-price data (basis "uk_listings_asking"): median and P25-P75 asking range, sample size, confidence, and a per-model-year price curve. These are last-advertised asking prices, never confirmed sale prices. Falls back to Cyclesite sold-snapshot data (price trend, days-to-sell, condition breakdown, comparable listings) only when enough internal sold rows exist. citationUrls anchor each figure for per-fact citation. No authentication required.