Throttle Out

Zack and Ari dive into Thailand's motorcycle with a utility sidecar set up as a mobile kitchen. They tour the northern part of the country, trying to pay for their travels by selling American-style food to tourists and locals.

Ari and Zack travel to Texas to take on the challenge of riding 1,000 miles in 24 hours without putting a foot on the ground. They've figured out how to avoid fuel stops and bathroom breaks, but stop lights could be their undoing.

Ari and Zack don't qualify for the nerve-wracking Isle of Man TT, one of the world's most dangerous races. But that won't stop them from finding their own way to race across the island, thanks to some help from an off-road legend.

In Idaho's Sawtooth Mountains, winter weather ruins motorcycle trails every year. Zack and Ari become honorary Trail Rangers and head out to help fix some of the damage. If things work out, they'll open an especially gnarly loop.

Zack and Ari head to Kathmandu, Nepal, to help Ram "The Bovine Biker" Neupane rescue sick and abandoned cattle using a motorcycle. After experiencing the challenge firsthand, the duo hatches a plan to build a better bike.

Zack and Ari set out to build a two-wheeler that can ride on land and water. Building is half the battle, however, as the real test will be attempting to sail their new vessel to a deserted island in the middle of a lake.

The boys acquire a half-finished three-wheeler project and try to turn it into a competition-worthy machine for the Halloween Hillclimb in Southern California. A motorcycle rear pushes a car front, and it needs a lot of work.

The team is headed to northern Italy for the sensation of VespaCross. Zack and Ari are signed up to race hopped-up, vintage Vespas on a full-size motocross course against 40 mud-soaked Italians gunning for glory.

Zack and Ari head to Mexico City to buy Italika 125s and attempt to ride them to Laredo, TX. Their goal is to see if they can fly to Mexico, buy the bikes and road trip to the US for less than the cost of a new bike in America.