I only put the wheelie bar on for a recent car show. I feel it is safer to ride without it. With the bar removed the bolts that hold it act as grind stops just before it tips over backwards. It has been fairly predictable to ride with a stock intek at 35-40, curious how it will run after a bit of engine work? We built a few with World Formula engines and a tall gear, it was overkill for the wheelbase.