The ornamental design for a handle bargrip, defining a channel, as shown and described.
FIG. 1 is a perspective view of a handle bar grip showing my new design, side by side engaged with the strap of an article;
FIG. 2 is an enlarged perspective view showing the channel defining handle bar grip of FIG. 1 in isolation;
FIG. 3 is a right side view of the channel defining handle bar grip of FIG. 2 and wherein the left side view is the mirror image of the right side view;
FIG. 4 is a front view of the channel defining handle bar grip of FIG. 2;
FIG. 5 is a rear view of the channel defining handle bar grip of FIG. 2;
FIG. 6 is a top plan view of the channel defining handle bar grip of FIG. 2; and,
FIG. 7 is a bottom plan view of the channel defining handle bar grip of FIG. 2.
The broken line showing of the grips, wheelchair, and tank holder is included for the purpose of illustrating environment and forms no part of the claimed design.