a split cylindrical clamp encloses inner ends of grip bars of a folding handlebar to hold the grip bars in a firm , stationary , and strong riding position . a single user gesture flips a clamp lever to loosen the split cylindrical clamp allows the grip bars to be slid outward and folded to a folded position . the split cylindrical clamp is then tightened with another single gesture , flipping the clamp lever in an opposite direction , locking the grip bars in the folded position . while locked in the folded position , the grip bars are entirely immobilized .