"New" does not mean "optimal." 47 units prove it with numbers.
A bicycle fresh out of the box arrives with a factory mechanical state that is almost never the optimal one. This dataset diagnoses 47 new bicycles (pre-use) across five failure vectors, each with its quantified impact in watts, braking distance or tolerance deviation. It is the basis of the pre-use diagnostic framework (PDI).
| Vector | Parameter | Factory | Optimal | Impact |
|---|---|---|---|---|
| V₁ Chain lubrication | Power loss at 250 W | 6–10 W | 3.4–4.0 W | −2.6 to −6.6 W recoverable |
| V₁ Bearing lubrication | Kinetic μ | 0.05–0.10 | 0.01–0.03 | friction 3–5× lower |
| V₂ Spoke tension | Variation between adjacent | ±20–30% | < ±10% | asymmetric wear, fatigue |
| V₃ Hydraulic compliance | Stopping distance | +25% vs optimal | reference | +1.75 m at 30 km/h |
| V₄ Assembly torque | % out of range | ~40% | 0% | micro-crack risk in carbon |
| V₅ Total drivetrain loss | Cumulative power loss | 7.5–13.5 W | 3.9–5.5 W | Δ = 3.6–8.0 W recoverable |
// Aggregated sample. The per-unit dataset (the 47 records with component-by-component measurement) is delivered under agreement (see access).
Module_02 // ReadingThe framework and the measurement protocols are public in the white paper with its DOI. What is not published openly is the per-unit dataset (the 47 individual records with their raw readings). We reveal the vectors and their aggregated impact; the per-unit detail is shared under agreement.
Module_04 // Record (cite this)The sample (47 units) is illustrative of the population of new mid/high-range bicycles; it does not claim population-level statistical validity but rather to quantify real vectors. It allows expansion with more units. Provisional by design.
Need the per-unit dataset, a PDI on your batch or to validate your line before distributing? It is delivered under agreement from the Independent Laboratory · carlos.ravello@zoovettravel.com
© 2026 BikeLab Studio. Content under CC BY 4.0: you may copy, translate and publish it, even for commercial purposes. Citation is mandatory. Without attribution, the license terminates automatically (CC BY 4.0, §6.a) and the use becomes copyright infringement: we request the removal of the content and its deindexing. · Design and ownership: Carlos Ravello Joo