The in-game default stats for the Wario Bike are as follows:It's easily the Wario Bike.
Here are some random stats:
Size Heavy Speed 50 Weight 70 Acceleration 60 Handling 63 Drift 26 Off-Road 66 Mini-Turbo 59 Unlocking Have at Start
I agree with these points. Also, its speed stat is 37, which is below average and makes it the slowest large vehicle in the game, meaning it struggles to keep up with the rest of the large vehicles on long straightaways. The Sugarscoot is somehow worse because while it can drift off-road and has better drift, not only is its speed below average, but its weight is as well.The Wario Bike may be the heaviest bike, but that poor drift stat is a highly notable flaw when taking sharp turns. And unlike the Phantom, it can't drift on normal off-road, unless you're playing as Dry Bowser.