Range calculator
Estimate the range the spec sheet will not tell you.
Pick a catalog bike or enter your own battery, then adjust rider weight, riding style, terrain, and temperature to get a rounded real-world range band with the math visible.
Estimated range band
20-35 mi
Center estimate: 28.2 mi before rounding. That is about 60% of the 47 mi manufacturer claim.
Dominant factor: Trail / mixed singletrack at 0.60x.
Method shown
47 mi claim x 0.60x style x 1.00x terrain x 1.00x temperature x 1.00x rider/bike weight = 28.2 mi center.
2,520 Wh / 28.2 mi = 89.4 Wh/mi implied real use.
28.2 mi x 0.85-1.15 uncertainty = 24.0-32.4 mi raw, published as a 5 mi-rounded band.
Current source status
Starting specs are from the catalog record for Sur-Ron Light Bee X. If you edit the numbers above, treat the edited field as manual.
Battery exclusion
This selector excludes 4 of 59 published catalog bikes because battery Wh is not published.
- Razor MX500 Dirt Rocket: Battery Wh not published by listed sources
- Razor SX500 McGrath: Battery Wh not published by listed sources
- Razor MX125 Dirt Rocket: Battery Wh not published by listed sources
- STACYC 12eDRIVE: Battery Wh not published by listed sources
Coefficient ledger
Every multiplier below is either sourced from the catalog calibration or explicitly labeled as a VoltRipper assumption.
| Riding style | Claim factor | Battery-only fallback | Basis shown to reader |
|---|---|---|---|
| Trail / mixed singletrack | 0.60x | 90 Wh/mi | SourceClaim factor: 30 catalog bikes with both claimed and real range average 59.0% of claim; the trail factor rounds that to 0.60x. AssumptionBattery-only fallback Wh/mi: VoltRipper assumption used only when no claimed range is entered. |
| Moto / race pace | 0.38x | 150 Wh/mi | AssumptionClaim factor: VoltRipper assumption for high-throttle riding where power demand dominates range. AssumptionBattery-only fallback Wh/mi: VoltRipper assumption used only when no claimed range is entered. |
| Road cruise | 0.70x | 70 Wh/mi | AssumptionClaim factor: VoltRipper assumption for steady moderate-speed riding, still below low-speed manufacturer test conditions. AssumptionBattery-only fallback Wh/mi: VoltRipper assumption used only when no claimed range is entered. |
| Terrain | Range factor | Basis shown to reader |
|---|---|---|
| Flat hardpack / easy rolling | 1.08x | AssumptionVoltRipper assumption for smoother ground than the default mixed trail case. |
| Mixed trail | 1.00x | AssumptionVoltRipper default terrain assumption. |
| Sand, mud, or repeated climbs | 0.82x | AssumptionVoltRipper assumption for loose ground and climbing load. |
| Temperature | Range factor | Basis shown to reader |
|---|---|---|
| 60-85 F | 1.00x | AssumptionVoltRipper default warm-pack assumption. |
| 40-59 F | 0.92x | AssumptionVoltRipper assumption for a cool pack with some usable-capacity loss. |
| Below 40 F | 0.80x | AssumptionVoltRipper assumption for cold-weather range planning. |
| Above 85 F | 0.95x | AssumptionVoltRipper assumption for heat, soft terrain, and thermal headroom on long rides. |
Weight coefficient: Assumption. The reference rider is 180 lb; range changes 4% per 50 lb of rider-plus-bike weight difference and is clamped from 0.84x to 1.08x.
Band width: Assumption. The published band is the center estimate plus/minus 15%, then rounded to coarse mile increments.