I've been using spirgrips for 2 months with the objective to make the French Divide 2017, a long distance race of more than 2100 km. With a daily program of at least 150km, Spirgrips is one of the solutions to save energy. The position is natural and the arms and upper body are under less stress, we are less stiff and more fresh, it is really a benefit, no more tingling sensations in the palms of the hands. To try it is to adopt it !