Abstract: A device for monitoring a gear lever position includes one internal tube, one external tube, one adjust handle, one cover and one flexible piece. The internal tube has one ring-shape outer rim, one slot formed on the outer rim and one hollow and axial sheath. A convex fish-shaped lens is located on an imagine line from a rider's eyes to the position ring, the imagine line not being perpendicular to the axial sheath. Via the design of the convex fish-shaped lens, the position symbols are enlarged. The window only shows single position symbol in use. Thus, rider easily monitors and knows the actual gear lever position.

Abstract: A device for monitoring gear lever position consists of one internal tube, one external tube, one adjust handle, one transpicuous cover and one flexible piece. The said internal tube comprises of one ring-shape outer rim, one slot formed on the said outer rim of suitable position and one hollow and axial sheath, further, a suitable position of the said slot is installed a window. A convex fish-shaped lens is designed on an imagine line which from rider's eyes to position ring, the imagine line is not perpendicular to the axial sheath. Via the design of the convex fish-shaped lens, the position symbols are enlarged. The window only shows single position symbol in use for not confusing with other symbols. Thus, rider easily monitors and knows the actual gear level position.