You mean something like this?
Here's some info from below the video.
23inch / 12 pitch
Using Out-runner model aircraft motors
Around 140kV - 160 kV
Two lots of 6s cells connected in series
Speed controller (Speedie):
We go twice the amp rating for reliability and think that is about right. So 120A speedie
The 120A "Yipe" seems to work reliably as an entry level unit.
Speed control is via a modified servo tester wired onto the speedie.
1.7kg plus batteries (2x10,000A 6s) 2.7kg = 4.4kg.
gives 10 min at full throttle or hours of fun at low revs/used intermittently."