Where should i mount brushless motor 1800w

[KawaKebab]

Cant fit in the swing and dont want soldering done so like where can i mount in the metal....

 

[From-A-To-B]

Hello again, KawaKebab. Your question is rather central to a DIY conversion like the one you're undertaking. Sorting out how to mount the retrofit motor is just as important as sussing out your battery. There's other people here in the Motorcycle Builds section that have posted examples of how their mounted their mid-drive motors. Look there for ideas. Many people wind up using space in the center of the frame. If you cannot weld (I assume you meant weld when you said "solder") - then your options are more limited. You'll have to fabricate a bolt-on solution if welding is not something you can do for yourself or pay someone else to do for you.