Sirrus X 3.0 EQ review: An affordable everyday sports bike from Specialized

Editorial assessment​

With the Sirrus X 3.0 EQ Specialized has pulled off a remarkable balancing act: at 13.1 kilograms (size XL, as measured by BIKE), the bike is pleasingly light yet still equipped for everyday use – a combination that is rarely achieved so consistently in this price range. Only a little more tyre clearance would be desirable. - Adrian Kaether, Test & Technology Editor

Concept: Fitness bike meets city transport

The Sirrus X is deliberately positioned somewhere between a pure fitness bike and a fully-fledged trekking bike, and It is therefore conceptually very similar to fully-equipped performance gravel bikes (reviewed here). The sporty, slightly forward-leaning riding position and the bike’s geometry send a clear message: this bike is designed to get you there quickly. At the same time, the mudguards – which extend down to an exemplary length – prevent your back or shoes from getting wet on your commute, and the Racktime luggage rack easily accommodates your shopping or work bag.

Powertrain and brakes: Solid mid-range performance

The Shimano Cues 6000 (reviewed here) has established itself as a robust, low-maintenance groupset – just right for a bike that’s meant to be ridden every day. With an 11–50-tooth cassette, it offers plenty of gear range and is easy to use with just a single chainring. The hydraulic Tektro brakes provide reliable stopping power, though they do not quite match the modulation of higher-end systems. However, their performance is perfectly adequate for city cycling.

The crux of the matter: the tyres

This is where the only real weakness becomes apparent: a tyre width of 40 millimetres is rather old-school even for gravel bikes, and a bit on the narrow side for a dedicated city bike in 2024. Cobblestones, potholes or kerbs offer little forgiveness here, and comfort suffers somewhat. 47–50 mm would be more in keeping with the times and would better suit the otherwise impressive overall design. Unfortunately, there isn’t much room left in the frame for a future upgrade.

Who is this bike best suited for?

The Sirrus X is the perfect match for:

• Commuters with a medium-length journey who want to get there quickly
• Fitness-oriented cyclists who aren’t looking for a bike designed purely for sport
• To everyone who consciously chooses not to use motorised assistance – whether for training, fitness or out of conviction
• Urban-rural combinations: Its moderate cross-country capability also makes forest tracks a possibility

Alternatives to the Sirrus X EQ:

Versus Gravel Bike: Gravel bikes are sportier and lighter, but usually don’t come with mudguards or a luggage rack. If you mainly cycle in town, you might find this a drawback. Randonneurs such as radon (tested here) or Diamant (reviewed here) are, however, very similar to the Specialized in terms of character and intended use.

Versus E-bike: The target audience is completely different. E-bikes excel on hills, when carrying loads and over longer distances, but are 7–10 kg heavier and cost considerably more. The Sirrus is aimed at anyone looking for exercise, who doesn’t want to have to worry about battery management, and who needs to be able to carry the bike easily into the cellar or their flat.

All in all

The Specialized Sirrus X 3.0 EQ is a reliable, well-designed city bike for sporty riders. The weight saving compared to conventional trekking bikes is noticeable when setting off, and the spec is thoughtfully practical. If Specialized were to fit slightly wider tyres as standard, it would be a clear ‘must-buy’. As it stands, it remains a very good bike, albeit with a compromise that could have been avoided.