Savic Simulations

Savic Motorcycles have some spec updates coming out soon, so I’ll share this now and get ready to be totally incorrect.

As of mid-February the specs given for the alpha and delta models are:

Alpha
200Nm
60kW
Top speed 180kph
gear ratio 4:1
Rear-wheel 180/70ZR-17
250kg
claimed range of 200km
0-100kph = 3.5s
Battery
144V
16.7kWh

Delta
140Nm
40kW
Top speed 160kph
gear ratio 4:1
Rear-wheel 180/70ZR-17
240kg
claimed range of +150km
0-100kph = 4.5s
Battery
144V
14.2kWh

Using Watts and Nm we can calculate that the peak power is at about 2800RPM for both motors.
I'll take the liberty of assuming the maximum motor speeds are about 6000RPM for both motors.

The range of the bikes is going to be highly dependent on the battery and the aerodynamic drag, so I will have to make assumptions on both. I'll use the aerodynamic Cd of 0.8 for the bike and rider with a frontal area of 0.9m2. I think these numbers will be close.

The list of further assumptions includes rolling resistance, motor efficiency, inverter efficiency, gear efficiency, the inertia of wheels and motor. What else? oh, and 80kg rider.

The battery poses a big question, without knowing the cells it is difficult running a model with any accuracy. So I'll just go with another assumption and use an appropriate simulated build to make the 144V packs.

Results
Alpha
Range city (SAE J2982) = 298km
Range at continuous 89kph (55mph) (SAE J2982) = 152km
Range at continuous 113kph (70mph) (SAE J2982) = 83km
0-100kph = 4.5s
Top speed 181kph

Delta
Range city (SAE J2982) = 255km
Range at continuous 89kph (55mph) (SAE J2982) = 142km
Range at continuous 113kph (70mph) (SAE J2982) = 72km
0-100kph = 6.5s
Top speed 160kph

A rider doing 113kph will not be sitting in the same position as a rider doing city riding, I certainly wouldn't be. Therefore the range at 113kph may change in real-world conditions as a rider tucks in and presents a low drag and frontal area. But following the SAE procedures, these are the numbers the simulation reports.