If your idea of trail riding follows the philosophy of go big or go home you simply cant beat the agility and responsiveness that a 650b provides knowing this we built our stumpjumper fsr expert carbon 650b to be the ultimate all rounder trail bike it features a workhorse sram one by groupset and the no holds barred guide r hydraulic disc brakes to round out a build that places an equal focus on durability and efficiency at the frame youll find our fact 9m carbon fibre trail chassis with