How to assemble V4
https://www.youtube.com/watch?v=dTxY8-kRURk
How to replace V4 Battery
https://www.youtube.com/watch?v=yZxy7IedzKs&feature=youtu.be
How to replace V4 Battery Case
https://www.youtube.com/watch?v=mcfmDv584sU&feature=youtu.be
How to replace 105 hub motor kit
https://www.youtube.com/watch?v=SvHvSgC7duw
How to replace V4 ESC
https://www.youtube.com/watch?v=Z2uFS-hpMig
How to replace V4 ESC Case
https://www.youtube.com/watch?v=28zh-z6gJYc
How to install V4 Handle
https://www.youtube.com/watch?v=3ailntBHm3w&list=PLapD4Dl2iMXHpCR2A4R-TdiFcL9EEE1Sq&index=3