Sources
Every figure in the tool, where it came from, and how much we trust it.
This table is generated from the same file the tool uses, so it can't drift out of date. Watts are shown at the speed each was measured at. Confidence is our own rating, not the source's.
0.5+ anchored to a named published test. 0.3–0.4 reasonable figure, or one that varies a lot by rider. 0.25 and under our own estimate, not yet checked against anything.
Catalogue
| Change | Watts | At | Cost | Source | Conf |
|---|---|---|---|---|---|
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Tyre tiers
Tyres are grouped rather than listed by model. Each tier figure is the average of the real rolling resistance numbers for the tyres in it, measured at 28.8 km/h.
| Tier | Watts per tyre | Examples |
|---|