32-inch mountain bikes : what place for this new standard?

Over the past fifteen years or so, mountain biking has seen a succession of changes in standards regarding wheel diameter. The 26-inch wheel, long considered unbeatable, has gradually given way to the 27.5-inch wheel, then the 29-inch wheel, which is now widely adopted. With the arrival of the 32-inch wheel on certain prototypes, one question arises: are we looking at a real innovation or an attempt to revive the market with a new format?

The different wheel standards in mountain biking

Before discussing 32 inches, it is useful to recall what each standard has brought to the table. The historic 26-inch wheel remains the benchmark for manoeuvrability and responsiveness, particularly in dirt or technical downhill riding, but it has its limitations in terms of clearance and stability. The 27.5-inch wheel emerged as a compromise, offering greater fluidity than the 26-inch wheel while maintaining good responsiveness. It is less common today, but remains relevant for certain specific uses. The 29-inch wheel, now the standard, appeals for its superior performance, climbing ability and increased stability. On the other hand, it is considered less responsive in technical terrain. The 32-inch wheel, still relatively unknown, seeks to push performance and stability even further than the 29-inch wheel.

The theoretical benefits of 32 inches

The principle is clear: the larger the wheel, the more it smooths out uneven terrain. With 32 inches, obstacles such as roots, stones or steps are even easier to overcome, offering a high level of clearance. The increase in diameter also improves stability, as a longer and taller bike is particularly reassuring on fast descents. Finally, the greater inertia makes it easier to maintain speed on rolling sections, which can be an advantage in certain disciplines such as marathon or endurance cycling.

The limitations of 32-inch wheels

However, these benefits come with significant constraints. First, the geometry of the bike is profoundly altered. With larger wheels, the frame and fork must be adapted, which lengthens and raises the bike. The result is a loss of agility, noticeable on narrow single tracks and fast sequences where manoeuvrability is essential. Weight is another limitation: a larger wheel is heavier, and its increased inertia requires more energy to get going again. On demanding courses where changes of pace are frequent, this can quickly become a disadvantage. Added to this is the question of compatibility: tyres, rims, frames and suspension must be specific, which means a limited range and high prices in the early years. Finally, morphological adaptation should not be underestimated. For smaller cyclists, riding a bike equipped with 32-inch wheels may pose problems in terms of ergonomics and comfort.
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History repeating itself

Every change in standard has been met with scepticism before eventually becoming the norm. The 29-inch wheel is the most striking example: after a slow start, it won over the majority of riders with its objective advantages. The 27.5-inch wheel, on the other hand, has never gained the same legitimacy and tends to be marginalised, except in downhill racing on hybrid configurations. The 32-inch wheel could follow one of these trajectories, but at this stage it is too early to tell.

The 32-inch wheel does not seem destined to quickly establish itself in gravity disciplines, where wheel standards have always evolved more slowly than in XC. For more versatile use, most riders are looking for ease of use rather than pure performance on the clock. However, a larger wheel could provide that feeling of fluidity and efficiency, especially on descents, where many riders would appreciate the stability and climbing ability. On climbs, on the other hand, the extra weight and inertia are likely to be more noticeable.

Our vision at Origine

At Origine, we don’t follow trends for their own sake. We reject industry standards when they don’t meet the real needs of cyclists. Our philosophy is simple: a bike should be designed with you in mind, your body type, your riding style and the terrain you ride on, not to satisfy marketing logic. The 32-inch wheel is an interesting innovation to observe, but it does not yet demonstrate sufficient added value for all mountain bikers. We prefer to focus our expertise on what really makes a difference on a daily basis: a balanced frame, precise geometry and a build tailored to your riding style.

The choice of proven performance: the Theorem FS

It was with this in mind that we designed the Théorème FS, our 29-inch cross-country mountain bike. Developed to the highest standards, it combines maximum performance, smoothness and precision handling. Designed to meet the expectations of the best riders, it proves its effectiveness at the highest level: in 2025, Mathis Azzaro racked up World Cup podiums on his Théorème FS. More than just a competition bike, it is a machine designed to excel both on the track and on your daily rides, with the same uncompromising performance standards.