Collection: Triathlon Bikes

Triathlon bikes are designed for one thing: to get you through the bike portion of your race as quickly as possible with minimal energy expenditure. Where a regular road bike prioritises versatility, the tri bike is uncompromising. It is aerodynamic, aggressive, and optimised to maintain a stable and efficient position over long distances. At Transition Zone, you will find triathlon bikes from both Trek, Cube and Cervélo – two of the strongest names in the sport – with models for both the beginner and the ambitious Ironman athlete.

The triathlon bike is not just a bike – it’s a piece of specialised equipment, designed to function as an extension of your body. Everything, from the geometry of the frame to the placement of the saddle, armrests, and extensions, is designed to give you an aerodynamic advantage. Once you learn to sit correctly in the extensions and find peace in your pace, the bike becomes part of your rhythm. And that’s exactly what triathlon is all about: maintaining a rhythm that you can maintain all the way to your running shoes.

At Transition Zone, we have the Trek Speed Concept – one of the most recognised triathlon bikes on the market. It combines aerodynamic finesse with smart storage options and comfort over long distances. The Speed Concept is designed to give you speed without draining your body – and it feels good, especially when you have many hours in the saddle ahead of you. At the same time, it is easy to maintain and adjust, making it an ideal choice for both experienced and new triathletes.

Cervélo's P-Series and P5 are in many ways among the sport's most iconic models. They are used by both professional and age group athletes worldwide – and for good reason. Cervélo has an uncompromising approach to aerodynamics and efficiency. This results in bikes that cut through the wind while keeping weight down and stiffness up. The P-Series is an obvious choice as a first tri bike, while the P5 is for those who want to compete at the highest level. What both have in common is that they feel stable, fast and built to race.

The Cube Aerium C:68X is a triathlon bike built for speed and efficiency. Developed with aerodynamic experts from Swissside, every detail – from its frame shapes to the fully integrated cockpit and storage – is designed to minimise drag and save you watts when it matters most. The Aerium C:68X combines world-class aerodynamics with stability, so you feel confident even in challenging conditions and can hold your aero position longer. What makes the Aerium C:68X stand out is that it delivers this level of technology at a sharper price point than many flagship models. That makes it an obvious choice for ambitious triathletes who want maximum performance and value in the same package.

What really sets a triathlon bike apart from a regular road bike is the riding position. The triathlon bike places you further forward and lower down, reducing your frontal surface area against the wind and saving energy – especially over long distances. This means you can maintain higher speeds with lower watts, and your legs are less stressed when you get off and run. However, it takes time getting used to, both in terms of technique and comfort, and it’s important to get help with the position.

At Transition Zone, we help you find the right size, adjust your bike correctly, and add equipment like bottle systems, storage, power meters, and an aero helmet. We know that it’s not just about speed – it’s also about being able to use that speed. A triathlon bike should make you faster, but it should also enable you to run fast afterwards. That’s why it’s important to get both fit and comfort right from the start.

Buying a triathlon bike is an investment in your training, your experience and your development as an athlete. It is a choice that should match both your level, your goals and your approach to the sport. At Transition Zone, we are triathletes ourselves. We have been in the saddle, we have raced, and we know what works – and what doesn’t. That’s why you get honest advice, the opportunity to test ride and help choose the right equipment.

We're happy to help you get started, whether you're on your way to your first 70.3 or chasing a new full-distance PR. We offer both complete bikes and individual builds with optional wheels, extensions, saddles and gear groups – all based on your body and your budget. And once the bike is in your home, our workshop is ready to help with service, adjustments and optimisation.

Visit us in store and feel the difference – we will help you find the triathlon bike that suits you and your goals.