1234_BA_E_Rev0 - VOLspeed Giant Syncdrive Sport/Pro V4
© TLI Elektronik GmbH
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Change wheel circumference
The tuning module uses the wheel circumference stored in the motor as standard. Therefore, an
adjustment is normally not necessary. However, if the speed display or distance measurement is
inaccurate, the value can be adjusted manually by +/- 10%.
Switch on the e-bike and set the trip or odometer display and activate the speed
mode as described in chapter 7.
Display Unit
If the display is set to mph, temporarily change it to km/h.
Information on this can also be found in the FAQ, chapter 13.
Use the keys to change the support levels to enter the following sequence:
- - + + - -
The set wheel circumference is displayed in centimeters as total and daily
mileage ( 1 centimeter = 1 kilometer).
Meanwhile, the speed display shows 88km/h (88mph).
The value can be changed with the plus and minus keys. Pressing the Walk key
restores the default value.
If no key is pressed for 10 seconds, the odometer reading is displayed again and
the set wheel circumference is saved.
Wheel circumference
Do not confuse the value with the tyre diameter, which is often 27.5”, 28” or 29”. The
wheel circumference, on the other hand, is the distance the e-bike travels in one
wheel revolution. You can either measure the value yourself or use the tyre
manufacturer's specifications.
Please also note that the value must be set in centimeters. One inch corresponds to
2.54 centimeters.
