https://www.velosklad.ru/velo-obzor/info/5480-srednyaya-i-maksimalnaya-skorosti-s-kakoy-skorostyu-vozmozhno-peredvizhenie-na-velosipede#:~:text=%D0%9E%D0%B1%D1%8B%D1%87%D0%BD%D1%8B%D0%B5%20%D0%B2%D0%B5%D0%BB%D0%BE%D1%81%D0%B8%D0%BF%D0%B5%D0%B4%D0%B8%D1%81%D1%82%D1%8B%20%D0%B2%20%D0%B3%D0%BE%D1%80%D0%BE%D0%B4%D1%81%D0%BA%D0%BE%D0%B9%20%D1%87%D0%B5%D1%80%D1%82%D0%B5,30%2D35%20%D0%BA%D0%BC%2F%D1%87%D0%B0%D1%81.