Lightweight rider Jonas Deichmann is no stranger to difficulty. Starting with a two-year round-the-world ride when he was still in university, Jonas has dedicated much of his life to completing the types of challenges others wouldn’t even dare dream about—and he’s set a number of world records along the way.

Take, for example, Jonas’ 2017 trip across Eurasia, a 14,331-kilometer journey he completed in just 64 days, becoming the fastest individual to ever do so. The following year, Jonas was on the road again, cycling 23,000 kilometers from northern Alaska to the southernmost point in Argentina in under 100 days, earning himself another world record en route. 2019 meant another year, another challenge, and another record—cycling this time Cape to Cape from Norway to South Africa and setting a new fastest known time.

The last time we caught up with Jonas, in the middle of last summer, he was halfway through another epic adventure, crossing the United States twice—one by bike, and once on foot. Since completing that journey, Jonas has been busy planning his next—and most ambitious—adventure: the Challenge 120.

For the Challenge 120, Jonas’ goal is simple, but by no means easy. Starting May 9^th, he plans to complete one long-distance triathlon a day, every day, for 120 consecutive days. That’s 3.8 kilometers of swimming followed by 180 kilometers of cycling and 42 kilometers of running every single day for four months straight. Of course, if Jonas manages to complete this ambitious plan, he’ll earn himself yet another world record.

His latest undertaking won’t be Jonas’ first foray into the mixed-discipline world of triathlon. In 2020, Deichmann completed a similar swim-ride-run combo, following the Croatian coast for 450 kilometers, cycling 21,000 kilometers across Europe, and running 5,060 kilometers through Mexico. In total, this Triathlon 360, as he called it, had a total distance equal to 120 Ironman races—the same distance he aims to cover this summer.

There is, however, one key difference between Jonas’ last and latest attempts: time. Jonas completed his previous tri-challenge in 430 days. This time, he’ll have less than a third of that—and no off days.

Of course, Jonas will have a bit of extra motivation to keep him moving during the Challenge 120. On this, as with his previous Trans-America Twice trip, Deichmann’s hard work will be for a higher cause, raising money to support an important charity. While last year’s journey was dedicated to World Bicycle Relief, this time around, Jonas is raising funds for the Laureus Sports for Good Foundation, an organization dedicated to bettering the world through the power of sport.

As the clock counts down to the kick-off of Jonas Deichmann’s most ambitious challenge to date, we’re wishing him good luck from the Lightweight team. You can follow along on this and other of Jonas’ adventures on Instagram @jonas_deichmann or at https://jonasdeichmann.com