We run the simulation and send you a report

What the report contains

Every position you submitted, ranked by aerodynamic drag, and what the gaps between them are worth in watts at realistic riding speeds — a difference matters far more at 45 km/h than at 30.

Observations about what actually changed between the positions, so the number is attached to something you can act on.

Why a comparison, not a score

An isolated drag figure is hard to act on and easy to misread, because it depends on assumptions about equipment, clothing and conditions. Comparing your own photographs against each other, taken under identical conditions, cancels most of that out — which is why WattCut is built around comparisons rather than scores.

During early access

WattCut is a developing simulation platform, and early access is how we find out which comparisons riders actually want. Joining is free; simulations are bought as a pack when you want one. Parts of an analysis may be completed manually, and submitting images does not guarantee an immediate analysis.