Cyclesite's market insights programme is a set of public data products built from first-party transaction data on the UK's used bike marketplace. Three reports sit under this umbrella: the Cyclesite Used Bike Price Index (monthly), the UK Used Bike Resale Market report (quarterly), and the UK Bike Depreciation Report (annual). Each report is grounded in the same underlying sample — completed sales on Cyclesite with full provenance data — and each is published under a Creative Commons BY licence so journalists, academics, dealers and private buyers can cite the figures with attribution. The common methodology. All three reports draw from immutable sale snapshots recorded at the point of escrow release. Each snapshot captures sale price, original list price, days-to-sell, category, brand, model, year, condition, frame material, groupset, location, listing type and whether the listing went via auction or classified. We use medians rather than means to suppress outlier bias, publish sample size alongside every figure, and mark any segment with fewer than 10 transactions over the reporting window as "insufficient sample" rather than report a potentially unreliable number. Why this exists. The UK used bike market has never had a public, first-party price index. Price discovery happens through asking-price averages on general marketplaces (which over-state real values by 15-25%) or through private dealer valuations (which are not published). Cyclesite's transaction dataset is the first opportunity to publish a consistent, methodology-driven benchmark — useful to private sellers setting asking prices, to buyers researching before offering, to dealers forecasting inventory, to journalists covering cost-of-cycling stories, and to academics studying the second-hand economy. Launch status. The Cyclesite marketplace launches publicly on 24 April 2026. The first full report (the May price index) will be published in June 2026. Sign up at /press for advance copies under embargo.
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