Engineering a heavy duty cycle truck? Stoke monkey?

[jawnn]

I need a mid-mounted motor that will produce about 750 to 1000 rpms at about 900 to 1200 watts for my Surley longtail cargo bike. I want to run a belt directly to the left side of the drive wheel with a single gear reduction of about 1 to 5 or 6 max for a 12-13mph wheel speed. No mid-drive kits or hub motors! I am not interested in speed!!!


I am thinking about the StokeMonkey, but I cannot find any power graphs. Can you tell me what I need to know? (Wattage and RPMs)

Are there any stronger motors rigged like a stoke monkey?

[mtm408]

Luna Cyclone XL is a beast of a mid-drive.