Hi Wilfried,
Thanks for your email. Of course lower temperature will be better for motor but everybody want powerful RC models. So normally motor will get very high temperature. Our motor can handle maximum 150c inside, probably 100-120c outside of motor. We suggest you install a heatsink on the motor.
Any further questions or comments, please feel free to contact us.
Regards,
Voila je vous le met ici ça peut servir !!!
Donc pour traduire :
Leurs moteur supporte 150°C interne, et 100-120°C sur la paroie extérieur
