The sky mounti®
finally finishes implausible stories about the steepness of ascents and
descents. It fits to the handhandlebars very easily and works like a
spirit-level. The bubble air floats in a highly viscous fluid within an
acrylic glass body equipped with a meter scale up to +/- 21% (27%). The
analogous display works precisely and without vibrations. Low
tech, high function. Made in Germany.