<b>This item is not hub motor</b><br> This item is just a 8" wheel with pneumatic tyre(with inner tube), <br> it match for our 8" mini scooter brushless hub motor, <br> This tire is no gas, you need to inflate the tire when you receive it<br> For more information please feel free to contact me.<br> <b>Wheel Size: </b> 8 inch<br> <b> Wheel Width: </b>50 mm<br> <b> Axle Length: </b> 65 mm<br> <b>Hub Material: </b>Aluminium Alloy<br> <b>Tyre Material: </b> Rubber<br> <b>Axle Hole Size: </b> M10<br> <b>Net Weight: </b>1.35 kg<br><br><br> <b>promotion of shipment：</b><BR> weight less than 2KG,We will send by epacket.(shipping time about 7-15 working days)<BR> weight more than 2KG,We will send by DHL or UPS,or TNT.(shipping time about 3-7 working days)<BR> (we send the package to our shipper need 2 working days)<BR> we cann't change the shipping time on amazon system, <br> so the system shows maybe need long time but that is wrong. <BR> we will send it as soon as possible.<BR> If you have any question,please feel freely to contact me.<BR>