Bit Bike

Nano Bike (known as Bit Bike in North America) is a bike in the game Mario Kart Wii.

The Nano Bike has the best handling in the game. Its other pros are a good acceleration, off-road, and mini-turbo. Its drifting is average. However, it's the slowest vehicle in the game. Additionally, it's very light, so it's easy for heavy vehicles to push it around. Its stats are shared with the Baby Booster.

When compared to the Quacker, the Nano Bike has a tad worse acceleration, but slightly better off-road. Ironically, it's heavier than the Quacker, but lighter than the Cheep Charger.

Also, even though the Nano Bike has the best turning stat in the game, it drifts externally instead of internally (the Quacker, Magikruiser, Nitrocycle, and Torpedo have an internal drift) which can make it harder for some people to handle it, but easier for others.

Stats
Driver Baby Daisy
 * Speed: Very Low
 * Weight: Very Bad
 * Acceleration: Very High
 * Handling: Excellent
 * Drift: Medium
 * Off-Road: High
 * Mini-Turbo: Very High

Trivia

 * The Nano Bike looks similar to a small version of a Nitrocycle.