Bicycle Gear and Road Speed
Use pedal speed and gear ratio find road speed wey theory predict.
Your numbers
Road speed wey theory predict
E assume wheel no slip and loaded wheel circumference correct; wind and slopes affect the power wey you need.
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Formula
Use v = c(F/R)C×0.06. c na cadence for revolutions per minute, F and R na front and rear tooth counts, and C na loaded wheel circumference for m. Speed v dey for km/h.
Use pedal speed and gear ratio find road speed wey theory predict.
Example wey show the calculation
- Pedal turning speed (rpm)
- 90
- Teeth for front chainring
- 50
- Teeth for back sprocket
- 25
- Distance wheel cover for one full turn (m)
- 2.1
- Road speed wey theory predict
- 22.68 km/h
- Distance for one full pedal turn
- 4.2 m
Where e fit work and limits
E assume wheel no slip and loaded wheel circumference correct; wind and slopes affect the power wey you need.
We check inputs for missing values and allowed ranges. Result wey pass the finite numeric range no go show. Rounding affect wetin display, while calculation use the model numeric precision.
Check your units and assumptions before you rely on result. Changing label no convert currency or physical unit.
Version of di formula: 1f8ba44767c1 · Example don get check: