The new 2018 Specialized Sirrus comes with improved fit, comfort and performance – Bike Magazine Australia

For 2018, Specialized has updated its Sirrus family of fitness and commuter bikes. The latest generation of the Sirrus line has all-new carbon and aluminium frames and forks with geometry changes across the board – all the way from the Sirrus Alloy model ($750) that comes with a steel fork and v-brakes to the top-end Elite Carbon ($1800) with internal cable routing, TRP disc brakes, Praxis cranks, thru axles, and Specialized’s Future Shock.

The Sirrus is available in a multitude of builds, most with disc brakes and a couple, like the base model, with rim brakes.

With the updates, Specialized claims that they have improved the fit, comfort, and performance of the bike. The geometry has been tweaked across the entire line using data gathered from Specialized dealers using the Retul fit system. Each time a person is fit at a dealer with Retul, the data is sent back to the engineers at Specialized, who take the most common fit and comfort changes into consideration for the design of the new bikes.

Specialized also worked with McLaren Applied Technologies to incorporate the same Future Shock handlebar suspension that is found on their Roubaix, Ruby, and Diverge on the Pro and Expert Carbon models of the Sirrus. Specialized says that by increasing vertical compliance, the Future Shock improves smoothness, speed, and comfort on the bike. The carbon bikes also have thru axles front and rear to further increase stiffness.

The 2018 Sirrus is available in both men’s and women’s versions, along with several step-through models. The difference in the men’s and women’s bikes are saddles, grip sizes, stem lengths and angles, handlebar width, and crankarm lengths. There are also changes to these touch points between sizes of bikes to achieve an optimal fit for riders of every size.

The Sirrus also now has a sleek integrated seatpost clamp that improves standover clearance. All Sirrus bikes are fender and rack compatible with plug-and-play fender mounts, and most also come with bar ends that house a 4mm and 5mm Allen key inside—useful and convenient for when a quick, on-the-fly adjustment is needed.

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