3166 riders can do it
A 360° rotation with barspin while in the air.
How do it
To do a truckdriver you'll have to spin a 360 while doing a barspin. You can't simply pull the bike in, as you won't be able to spin the handlebars. Doing a 360 from a truckdriver is a bit different — you knees must be near the seat at all times. Now let's move on to the truckdriver itself.
Approach at an angle. Take off and pinch the seat. Look at 270°, but try to keep the bars in sight.
After 180° spin the handlebars.
At 270 catch the bars back and finish spinning the 360.