For range, you can expect to get similar miles/kWh as a Zero, so you can probably do the conversion since you know the battery size.
Energica appears to use the same capacity battery pack on both Ego and Eva, 11.7 kWh nominal.
This is slightly larger (+2.6%) than the 11.4 kWh nominal of the 2016 Zero ZF13 bikes.
Energica Ego has 150 km (93 miles) at 80 km/h (50 mph), 100 km (62 miles) at 100 km/h (62 mph).
Zero S ZF13 has 158 km (98 miles) at 89 km/h (55 mph), 130 km (81 miles) at 113 km/h (70 mph).
A bit of interpolation using Wh/mile gives the following ranges:
- 89 km/h: 122 km Energica, 158 km Zero (+30%)
- 100 km/h: 100 km Energica, 144 km Zero (+44%)
Or in imperial units:
- 55 mph: 76 miles Energica, 98 miles Zero
- 62 mph: 62 miles Energica, 89 miles Zero