This question is about Nutrition and Cycling
Creatine may help improve cycling performance [1]
Creatine is a dietary amino acid found in many animal foods. The body uses creatine for quick muscular power, making it crucial for high-intensity efforts, such as riding up a hill or sprinting on the bike.
If you’d like to add creatine to your training regimen, look for creatine monohydrate and begin with 20g/day for 5 days, followed by 3 - 5g per day [1 2]
[1] Rawson, E. S., Miles, M. P., & Larson-Meyer, D. E. (2018). Dietary Supplements for Health, Adaptation, and Recovery in Athletes, International Journal of Sport Nutrition and Exercise Metabolism, 28(2), 188-199. Retrieved Jun 10, 2021, from http://journals.humankinetics.com/view/journals/ijsnem/28/2/article-p188.xml
[2] Jane Shearer, Terry E Graham, Performance effects and metabolic consequences of caffeine and caffeinated energy drink consumption on glucose disposal, Nutrition Reviews, Volume 72, Issue suppl_1, 1 October 2014, Pages 121–136, https://doi.org/10.1111/nure.12124