The 2021 Specialized Sirrus 4.0 in Flake Silver is a unisex hybrid bike for riders who have places to go, people to see, and fitness goals to achieve. The 2020 Sirrus 4.0 is built around a Fact 9 carbon fibre frame and fork. The carbon frame and fork are significantly lighter than the aluminium frame on the rest of the Sirrus range and will give you a more comfortable ride.The Sirrus bike has been in the Specialized range for years but gets subtle updates and upgrades every season. The current version is lighter and 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 and 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 and 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 and powerful hydraulic disc brakes that will help you stop in any weather. The tyres come with puncture resistance built in and the bike has all of the mount points you need for mudguards.This bike is perfect forRiders who want a lightweight bike for commuting or for reaching your fitness goals. With a carbon frame and fork the Sirrus 4.0 lets you go faster and have a more comfortable ride so you can make the most of your ride.Key FeaturesCarbon fact 9 frame and fork saves over 1.4 pounds (.6kg) and is a piece of art all unto itself.Through axle hub connection for positive wheel alignment and no rub Disc brakes.Wide range 2×9 Shimano Sora Road components for intuitive and precise shifting.