The 2021 Specialized Sirrus 4.0 in Flake Silver is a unisex hybrid bike for riders who have places to go, people to see, & fitness goals to achieve. The 2020 Sirrus 4.0 is built around a Fact 9 carbon fibre frame & fork. The carbon frame & fork are significantly lighter than the aluminium frame on the rest of the Sirrus range & will give you a more comfortable ride. The Sirrus bike has been in the Specialized range for years but gets subtle updates & upgrades every season. The current version is lighter & comes in a wider range of sizes than ever before. At its core the Sirrus has always been a bike that is designed to be fast on the road while still being really stable & comfortable to ride. This makes the Sirrus really popular with commuters but also means it is a great fitness bike. The Sirrus comes with reliable Shimano components that are built to withstand years of daily abuse on the world's pavement & ergonomically designed Body Geometry touchpoints to take the sting out of longer rides. The Sirrus 4.0 comes with 18 speed Shimano Sora road bike gears & powerful hydraulic disc brakes that will help you stop in any weather. The tyres come with puncture resistance built in & the bike has all of the mount points you need for mudguards. This bike is perfect for Riders who want a lightweight bike for commuting or for reaching your fitness goals. With a carbon frame & fork the Sirrus 4.0 lets you go faster & have a more comfortable ride so you can make the most of your ride. Key Features Carbon fact 9 frame & fork saves over 1.4 pounds (.6kg) & is a piece of art all unto itself. Through axle hub connection for positive wheel alignment & no rub Disc brakes. Wide range 2x 9 Shimano Sora Road components for intuitive & precise shifting.