If your approach to fitness is no nonsense and straightforward our sirrus disc is for you it39s constructed from a durable reliable and light a1 premium aluminium and it features a bombproof assortment of components like mechanical disc brakes and shimano shifting that are sure to get the job done sprinkle in some added comfort from our body geometry components and a fitness geometry that lives in the sweet spot between comfort and performance and you have a bike that39ll always be ready