The Sirrus X offers you the chance to experience your world in a completely new way and explore exciting places. This comfortable and sporty fitness bike is suitable for gravel roads and trails. It will motivate you to ride more than ever before. With larger tires for increased confidence, a slightly upright riding position, an intuitive single-chain drive, and numerous mounting points for racks and fenders, it is 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 while still wanting the maximum comfort provided by our scientifically tested and ergonomically designed Body Geometry saddle, grips, and pedals. The 4.0 is additionally equipped with our revolutionary Future Shock, a handlebar suspension that smooths your ride. Only the best for a life on two wheels.