12 inch BLDC hub motor for electric bike ?

I'm in need of a simple installation electric bike motor for a special application. The subject BLDC motor look that will perfect fit our needs. I am ready to order the first to complete the prototype, but will appreciate your advice if will work properly under the following conditions: 1. Max torque 15 Kg-m 2. Speed 0 to 10 Km/ h 3. Distance between charge batteries 5 Km Important is smooth start motion (no shaking) I understand the HBL-12" 24V 250W hub motor is good for the working conditions On your internet site for this size electric bike motor there is technical performance for the 36 V model only. I need only 5 Km range between battery charges.But very important is the star movement from stop (0 Km/h) very smooth, slowly start to move otherwise possible damage of the airplane nose wheel if start move quickly and shaking. Then the question, will 36 V brushless hub motor be better than 24 V ?Since 36 V have smaller currents I have the feeling will perhaps be better starting to move more smooth and slowly... Will be great the customized low speed. But please note that this special application, not yet a commercial product, then in the last phase of development. Will you customize low speed electric bike motor at the present stage of just one unit ? Looking all your products, the choice was your Model:HBL-12" 24V 250W hub motor because so simply installation. But also, although is not our preferred solution because much more complicated installation, could be your Stepper DLDC motor, which in this case the speed can be defined by the ratio of the gears, and the diameter of the wheel (which in our case is important to be small since the device shall be below the airplane... Max 12 inches but smaller is better...) Maybe the Stepper DLDC motor have the advantage of very smooth start motion ? It is our concern to have a very slow and smooth start motion... Actually from your specifications you give for the max torque of 16000 (the point we are most interested) 243 rpm at 18 Amps, which is for a 12 inch wheel about 14 Km/h, then is very near our 10 Km/h. We believe, if we do not read wrong your performance data for the 36 V HBL 12 inch electric bike motor as it is specified is OK... Please correct me if wrong. The fact that the motor will be capable of much high speed we believe should be not a trouble, we can easily put a limitation of the speed. Still extremely important is the smooth and slow increase speed from 0 Km/h (stop) with no shacking,but we understand this is related to the BLDC motor controller, which we will test but feel should be not a problem. We need as precise as possible to control smoothly the speed from stop 0Km/h to max 10 to 15 Km/h... with slow increasing speed and keep low speed 2 to 5 Km/h .Then NOT AT ALL "on" and "off" ! Another important issue is the torque. We need minimum 15 Kg-m torque, better if 20 Kg-m... ( 147 to 196 Newton meter)- Here is a big doubt with the numbers on your performance data since indicated mN.m 16000.0 ? if lower figures could be difficult start motion when in surfaces as grass. Then I need to order not only the hub motor but also the relevant BLDC motor controller and electric bike battery. When you say 36 Volts make no difference but preferred in Europe. I choice 36 Volts... as you say... but if 24 Volts is better, off course we change to 24 Volts... we need the better solution. Normally the device speed shall be about 5 to 8 Km/h... for safety reasons... and torque between 147 to 196 Newton meter at 0 Km/h to start motion. Hub motor, BLDC motor, bike motor, electric bike motor supplier: Leaf Motor Technology Co., Ltd Website:https://www.leafmotor.com/