Range simulator
How far will your e-bike go?
A 180 lb rider on the Heybike Venus at 16 mph with relaxed pedaling on flat ground on pavement can expect about 47 miles per charge (37–56 mi), using 13.1 Wh per mile. That is 55% of the brand's 85 mi claim.
How the simulator works
It adds up the power your bike needs at the wheel: rolling resistance from your tires and total weight, air drag (which grows with the cube of speed), and climbing. Your pedaling covers part of it; the motor covers the rest at 78% (hub) or 75% (mid-drive) efficiency. Battery energy divided by that consumption gives the range.
Only 90% of a battery's rated watt-hours are treated as usable, cold air and cold cells are accounted for, and the result is shown as a ±20% band. The model reproduces all 12 independent range tests it was checked against within that band. Read the full methodology.
Link to any result
Every setting is in the page address, so you can bookmark or share a result. Parameters: bike (a bike from the list, or custom), lb rider weight, cargo, mph, pedal (none, relaxed, moderate, strong), terrain (flat, rolling, hilly, climb) with grade, temp (°F), wind (mph headwind), surface (paved, gravel, dirt) and health (battery %). For a custom bike add wh, motor and weight. Compare up to 3 bikes on the same ride with bikes=slug1,slug2,slug3. Also accepted: weight or rider for rider weight on a listed bike, speed for mph, terrain=hills, and assist (throttle, high, medium, low).
Example: Velotric Discover 3, 250 lb rider, throttle only, hilly.
Electricity cost uses the US average of 18.31¢/kWh (EIA, July 2026).