Speed and Range

The motor is in fact a hank of copper so the maximum speed is determined by controller specifications and battery voltage. The energy consumption has a nonlinear dependence on speed, because most energy is used to overcome the air resistance.

"The quieter you go, the further you'll get" is also applied to electric vehicles.

The table below shows experimental data, with a 80 kg rider on bike on a flat surface without wind.

Motor power, Watts	Speed, km/h	Energy consumption, *Wattshour/km**	Range, km
Motor power, Watts	Speed, km/h	Energy consumption, *Wattshour/km**	36 V 9.6 Ah (330 Wh)	48 V 9.6 Ah (440 Wh)	48 V 16 Ah (750 Wh)	77 V 15 Ah (1130 Wh)
150 + pedals	20	7	47	62	107	161
250	25	10	33	44	75	113
350	30	12	27	36	62	94
500	35	13	23	31	53	80
750	40	18	18	24	41	62
1000	45	22	15	20	34	51
1500	50	30	-	14	25	37
2000	60	34	-	-	22	33
2500	70	42	-	-	17	26
4500	80	55	-	-	-	20

Normal mode

Boost mode (<3 minutes)

Flying to get a new battery!

The range is counted for a flat ground and a good summer weather for a typical hard tail ebike without using pedals. Some specific methods, like coasting, less brake applying and pedaling, can help to greatly increase the range.

All our batteries can be combined in parallel (two, three and even more) having the range proportionally increased.