The specialized rockhopper sport 29er mountain bike 2017 delivers on any off road surface from single track to the trails the rockhopper sport 29 is the perfect bike to help find your legs on more technical terrain to ensure long lasting performance the frame has been constructed from light weight a1 premium aluminium this corrosion material provides a compliant durable platform to support the brilliant trail 29 geometry featuring a low bottom bracket roomy top tube and short c