The specialized hardrock 650b hardtail mountain bike 2017 offers a fun relaxing ride that takes off road root ridden paths in its stride featuring a high quality a1 premium aluminium construction the frame of the specialized hardrock is supremely durable amp light complete with a sport trail 650b geometry for a more relaxed geometry that excels in delivering efficiency on the climbs while in control on the descents features a set of durable performance driven components