Hello Valior,
Thank you for your question.
Most units have an input power range from 10 to 30 volts. Only FMB9 series, FMB2 series, and MTB100 have an input power range from 6 to 30 volts which could fit, for motorbikes.
Please let us know if you will have any questions for us.
Stay safe,
Teltonika Support