About Us

Gravity Assisted Mountain Biking

Since 1998 we have been rip-roaring, hoot-hollerin, and loving the amazing trails only the Andes can provide. We have taken more than 100,000 riders on once-in-a-lifetime, 2-wheeled pleasure bombs, (lives well lived, that is) in the incredible Andes. We’re talking about the ancient birthplace of the Incas, 3000m+ (11,000 ft+) descents, glacier, jungle (in that order), outta this world and off the beaten path cultural experiences, scenery, and bragging rights. Bring a pen cuz we’ve got some bucket-list-lines-to-cross-out kind of adventures.

And we have got just the adventure for you!

Where We Started

In 1998 a Kiwi, with a sense of adventure found himself with a bike high up in the Bolivian Andes. He explored the mountains surrounding La Paz and found a ride he knew people would love - The World’s Most Dangerous Road. He found a couple more bikes and offered the ride to anyone who would listen, and soon enough it became the bike ride to do in South America, and my have we grown! Now with a fleet of over 100 bikes, nearly as many spectacular trails and taking 10,000 riders out on incredible two-wheeled adventures each year!

Safety & Professionalism

We pride ourselves on our safety and professionalism, and with so many years under our belts, it’s no wonder that we are the premier biking company in South America.  From the biggest bike workshop in South America to International Safety and Operating Standards, we ensure that your experience with Gravity will be one of the best two-wheeled adventures of your life!  Just like the amazing Andes we love so much, we aim to wow.

Our Guides

Simply put, we love to ride, and we love to share these amazing mountains, their people, and cultures with anyone who comes our way. We work hard to ensure you love your time with us and go out of our way to provide the best possible service. Our top-notch guides are all trained in first-aid and rope rescue.

Safety Standards


Carbon Neutral


Kiwi Run


20+ Years Experience


Departures Guaranteed


Tripadvisor 2019

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Alistair Matthew​

Founder, CFO (Chief Facial Hair Officer)

I came to Bolivia in 1998 tired of the old 9 to 5, looking for a way to live the dream and turn my passion for biking into a lifestyle. It didn’t take long to realize the potential for riding in these amazing and largley untouched mountains. Soon I bought 3 more bikes and from these humble beginnings Gravity has grown into the premier mountain bike operation in South America. It has been that love and passion for biking that has helped us to grow into what we are today, not to mention how incredible the landscapes, people and cultures of Bolivia are. We love sharing the amazing Andes and all they have to offer and hope to be able to do so with you and get you out on an amazing bike ride soon. Not only is Bolivia some of the best riding in the world, but our trips are accessible for most any budget. Please contact us to get started on booking the ride of your life!

What we’re about


Be the best tourism company that seeks to share the adventure of biking with quality, experience and security to provide unforgettable services showing Bolivia as a magical and authentic destination, focused to live our passion with the world in unique places respecting "Pachamama" and her communities.


From our passion, experience and commitment to cycling and nature; We promote the development of our team and tourism in Bolivia. To become in 5 years the leading company in high quality tourist services providing our family of clients the safest, most professional and fun trip of their life; inspiring them to live intensely.