What is an Ironman and why is it so demanding?
If you practice triathlon, you know how tough it is to complete an Ironman. If you are not familiar with this event, it is an extreme challenge that combines 3.8 kilometers of swimming, 180 kilometers of cycling, and a marathon of 42.2 kilometers running, all in one day.
Now, imagine taking on 10 consecutive Ironmans in 10 days. A challenge reserved for the most extreme athletes and one that requires extraordinary physical and mental preparation. In September 2017, adventurer and content creator Valentí Sanjuan decided to accept this titanic challenge: covering more than 30 kilometers swimming, 1,800 kilometers cycling, and 420 kilometers running, completing the journey from Cádiz to Barcelona.

The bicycle: Cannondale Slice, a key ally
To take on this challenge, the bike chosen by Valentí Sanjuan was a Cannondale Slice, a high-performance machine specifically designed for endurance events and triathlon. This model is characterized by its aerodynamic geometry, which allows for an efficient posture to reduce wind resistance and maximize performance over long distances.
Among its main features are:
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Lightweight and aerodynamic carbon frame
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Precise transmission to maintain efficiency with every pedal stroke
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Optimized design for triathlon and time trial
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Ergonomic position to reduce fatigue over long distances
Could you do an Ironman with a road bike or a mountain bike?

Although time trial bikes like the Cannondale Slice are used in triathlon and Ironman, many cyclists wonder if they could complete an Ironman with a road bike or even with a mountain bike. The answer depends on the type of event and the course:
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Road bike : Although it is not specific for triathlon, a good road bike can be a valid option for those starting out in this type of competition. Its lightness and aerodynamic design allow you to maintain good speed over long distances.
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Mountain bike: It is not the most efficient option for an Ironman on the road, but in extreme triathlon events or modalities such as Xterra, where the cycling route is along trails and dirt roads, a MTB is the best choice.
Keys to facing an Ironman

If you are thinking about challenging your own limits and completing an Ironman, here are some key tips:
1. Train with a suitable bike
Make sure you have a bike that fits the event. If you are looking for performance, a road bike or triathlon bike is the best option. If the course includes rough terrain, a mountain bike with appropriate tires will be essential.
2. Nutrition and hydration
An Ironman is an extreme endurance event, so proper nutrition and hydration are essential to maintain energy and avoid exhaustion.
3. Endurance work and adaptation
Your training should include long sessions of cycling, swimming, and carrera, simulating the fatigue of a real event.
4. Steel mindset
The psychological aspect is as important as the physical preparation. Maintaining a positive attitude and the ability to overcome difficult moments will make the difference in the competition.
A challenge within reach of few
The challenge of 10 Ironman in 10 days is a feat that demonstrates the incredible capacity of the human being to surpass limits. Valentí Sanjuan, with his fighting spirit and determination, managed to complete this epic challenge with a Cannondale Slice, becoming a benchmark of extreme endurance.
If you are a triathlon lover and passionate about challenges, you may want to start with an Ironman or explore new modalities on a road bike or mountain bike. Dare to challenge your own limits on two wheels!