Silverback Bikes (Germany) – According to Silverback Bikes, "The Sirelli is a premium carbon all round road bike range with a penchant for climbing. Tubing shapes and overall design maximise the stiffness-to-weight ratio, ensuring that all your energy and control move the road bike intuitively. Compact geometry with different fork offsets for varying sizes, ensures that the ride up and down hills is responsive, agile, stable and direct. A minimalist design, using carbon properties to their fullest to enhance the riding experience".

The 2018 Sirelli 1 is a Lightweight Carbon Road Race bike with full a Shimano Ultegra 11 Speed groupset and Vision Team 35mm Deep section Comp wheelset.