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Specialized Sirrus X 3.0

A more powerful version of Specialized’s workout bike, the Sirrus X 3.0 has a little more of a “do-it-all” mentality. This bike is as maneuverable on back roads as it is for bombing through town or getting you to work thanks to its wide wheels and tyres and riser bar from a mountain bike. On prices, there is, nevertheless, some fierce rivalry.

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Overview

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Features

The Sirrus line of bicycles are hybrids with slick tyres, a 2x chainset, and either a compact or step-through frame. With 42mm gravel tyres, an extra-wide handlebar (in road bike standards) for better handling off-road, and a respectable variety of gears from a 1x setup, the Specialized Sirrus X 3.0 model add a little more adaptability.

It’s a fun bike to travel about on. I’ve generally used it when riding with the kids in the woods or on the school run, and it’s great fun.

Specialized A1 Premium Aluminum

Specialized claims that the A1 Premium Aluminum tubing used in the Specialized Sirrus X 3.0 is butted, meaning that the tubes have varying wall thicknesses along their length. They are often thinner in the middle for some flex and weight loss, which can slightly boost comfort, and thicker at the ends for strength at the welds.

Given the nature of the bike, the welding is an industrial touch that kind of works.

Both the frame and that full-aluminum fork include quick-releases for the wheels with conventional dropouts and flat-mounts for the brake callipers. Disk brakes are now commonly used with thru-axles, but the Specialized Sirrus X 3.0 performance and top speeds make the extra level of retention unnecessary.

Drivetrain

The cassette, rear mech, and shifters all sport the Deore mark, and the Specialized Sirrus X 3.0 is mostly a Shimano creation. It is a 10-speed groupset with an unbranded alloy crankset and an 11-42t cassette and 40t narrow-wide chainring.
Although there are restrictions at either end, the range of gears is adequate for a variety of riding. I only really utilized the four smallest sprockets for road use on the flats; on descents, you’ll quickly start spinning off.
Off the beaten path, the 40/42t lowest gear performs a good job of counteracting the weight on the climbs, but when the gradient became very steep, I was shouting out for something lower. The lever buttons are positioned perfectly, and the shifting up and down the cassette is clear enough. The chain is provided by KMC, and a threaded bottom bracket is included for dependability in damp conditions.

Brakes, Wheels and Tires

With Specialized Sirrus X 3.0 you are getting Tektro’s HD-R280 hydraulic brakes with a front 160mm rotor and a rear 140mm rotor. Even with just two fingers, these brakes never let me down, and they also have respectable modulation.

The wheels aren’t particularly fascinating, like the rest of the finishing package. You receive 32 stainless steel spokes front and back, double-wall alloy hubs with loose ball bearings, 22mm deep by 21mm wide double-wall alloy rims, and those QR axles.

They did take a lot of punishment up on the gravel tracks, but I had no problems with their durability. To be honest, that isn’t really what this Specialized Sirrus X 3.0 is about. They aren’t the lightest wheels available and don’t add anything to the ride quality.

The Specialized 42mm wide Pathfinder Sport tyres are excellent. They handle hardpacked areas with ease and roll smoothly on the road. They actually function everywhere that is dry. They are adaptable but struggle to handle anything dirty due to their narrow tread. If you’re using the Sirrus X for a commute, switching between a road, byway, or canal path is simple and won’t significantly affect performance.

With their wire bead structure, they aren’t the lightest, but their robustness more than makes up for it. I experienced no issues with cuts or punctures in the carcas while traversing a variety of terrain.

Geometry

You will need to go up a size to accommodate for the somewhat short stem if you are used to regular road or gravel bike geometry and base your frame size on top tube length. This medium, for instance, has an effective top tube length of 574mm, which is about 20mm longer than my average road/gravel bike, but the fit is good.

Its reach measurement is 398mm when combined with an 80mm stem, which is exactly the same as the new Allez Sprint Comp road bike in a 56cm. Due to the Sirrus X’s tall 180mm head tube, which results in 593mm, the stack is significantly higher.

The fork length is 395mm, the rake/offset is 51mm, and the head angle is a gravel-friendly 71° on the front end. The wheelbase measures 1,067mm in length.

Ride Quality

Although I found the lack of hand positions that a flat bar brings weird and something I must admit I’m not used to, it handles rough terrain nicely, and I never felt like I was being pounded.

The 10-speed, 11-42-tooth cassette and 40-tooth chainring provide a respectable range of gears and are typical of many 1x gravel bikes I’ve ridden. It slightly helps counteract the weight, and I only felt the X 3.0 strain a little bit on the sharpest slopes.

The Specialized Sirrus X 3.0 travels fairly nicely on the highway. As you approach traffic lights or intersections, the lower ratios offer you a respectable amount of acceleration, and the car’s pretty quick handling makes it simple to change directions when necessary. Although you may find it quite narrow if you’re used to riding modern mountain bikes with their 760mm–780mm bars, the bar width does limit the gaps you can cut through when filtering.

Specifications

Video Presentation

Pros & Cons

Conclusion

The Specialized Sirrus X 3.0 is a decent deal if you want a bike you can do a lot of things on, whether it’s commuting, riding for exercise, or going out with the kids. It sort of fills in that middle ground between a hybrid and a hardtail. Because it can accommodate those 42mm tyres, it also performs admirably off-road.

A hybrid do-it-all vehicle with some edge and attitude that is equally at home in the city and on country roads.

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Our articles are developed after considerable research and studies online and also including seeking informational experience based tips from professional rides. Key sources of information are interviews, google search and youtube.