[Nick Thatcher] is becoming the world’s authority on self-balancing unicycles. He’s unveiled The Jackal, his new single wheel vehicle. The Jackal is an upgrade to The Raptor, [Nick's] 2012 machine. The wheelbarrow wheel has been replaced with a much more fitting model sourced from a motorcycle. The 19″ motorcycle wheel improved balancing quite a bit. Wheelbarrow wheels were not exactly quality components, so they definitely made balancing the unicycle more difficult.
[Nick] upgraded his power system as well. The Jackal is powered by a 450 Watt 1020z geared motor. The 1020z is often found on scooters imported from the Far East. The motor controller is the same SyRen 50 Amp continuous / 100 Amp peak model used in the Raptor.
The Jackal’s frame has also seen some changes. It’s now sporting quite a bit of machined aluminum as well as [Nick's] standby PVC. The upgrades have paid off in performance. The Jackal can reach about 20 MPH, however the top safe speed is closer to 15 MPH.
Click past the break to see [Nick] demonstrating The Jackal at Makerfaire UK.