The Sirrus X gives you the opportunity to experience your world in a completely new way and explore exciting places. This comfortable and sporty fitness bike is suitable even for gravel paths and trails. It will motivate you to ride more than ever before. With larger tires for increased confidence, an upright seating position, an intuitive single-speed drivetrain, and numerous mounting points for racks and fenders, it’s more than just a reliable companion on the road. The Sirrus X is the perfect choice for riders looking for more than just a city bike, but who do not want to compromise on the maximum comfort of our scientifically tested and ergonomically designed Body Geometry saddle, grips, and pedals. The 4.0 is also equipped with our revolutionary Future Shock, a handlebar suspension that paves the way for you. Only the best for a life on two wheels.