If you’re wondering if it is better to cycle in the morning or evening, it depends on the goal of your ride. Cycling in the late afternoon/early evening seems to be slightly better for performance, whereas morning rides may be better for weight loss, fat-burning, and appetite control. Of course, if you are balancing time constraints, the best time to cycle is whenever you are able to.
If you’re looking to set a new PR or take your training to the next level, research shows that the afternoon is more favorable for cycling performance, as blood glucose levels and core body temperature are slightly higher [1
Conversely, cortisol and growth hormone are naturally elevated in the morning and the body is primed to draw more energy from fat reserves. These factors may contribute to the improvements in weight loss, appetite control, and fat oxidation observed in various studies [4
Of course, doing the work is what’s most important in achieving your health and performance goals, so the best time to cycle is whenever you can make time to do it.