Отзыв о Звездочка ролика Martin с втулкой от Jay Gutierrez

Based on my observations, the industrial and scientific build of these sprockets are disappointing. The corrosion and wear of the metal become noticeable within a few uses. The pros of this product are nil, while the cons are the high-risk of product malfunction and the need for constant replacement. Save yourself the trouble and invest in a better quality power transmission product..