referring to the figures ; when a bicyclist 90 sits upon a common ten - speed bicycle 80 with his hands 64 resting upon handlebars 70 , his torso 61 makes an angle α with his neck 63 which supports his head 62 . with his hands in the dropped position of the handlebars as shown in fig1 angle α 1 is made , a large angle leading to neck strain and a stiff neck very quickly . when his hands are on the handlebar crossbar portion as shown in fig2 the angle made is α 2 , still a somewhat large angle which rapidly also leads to neck strain and a stiff neck . but when he places his hands on an elevated ( formerly - dropped ) portion of the handlebars as shown in fig3 made possible quickly and easily while - in - motion by the prevent invention , the angled α 3 which results is essentially zero , and thus no neck - strain and stiff neck develop . as shown in fig8 the device of the present invention , comprising first component 10 , second component 20 , and third component 30 , is attached to a bicycle handlebar stem 50 such that bolt 10 is fitted through the bolt cavity normally present in such stems , handle - support 20 is threaded onto bolt 10 on the other side , and handle 30 is turned to tighten support 20 on bolt 10 . a bicyclist reaches over the handlebars while the bicycle is in motion and grasps and turns handle 30 to loosen the handlebars and move them to a new position , and then retighten them by turning handle 30 in the opposite direction . fin 11 is secured in slot 51 to keep bolt 10 from rotating while in functional position . for stems which do not have a slot 51 , fourth component 40 is placed over bolt 10 with slot 41 covering fin 11 and hex edge 42 abutting against ledge 52 to prevent bolt 10 from rotating . alternatively , bolt 10 can be provided with a hex head , and fin 11 covered with a modified lock washer in applications requiring the use of the hex head to keep the bolt from rotating .