A large percentage of our body is made up of water, so dehydration can affect how well you perform both mentally and physically. As a cyclist you are often limited to the amount of fluid you can drink and carry and as a consequence don't drink enough. It's important to keep well hydrated by drinking water throughout the day and extra fluid after training. Specific sports rehydration formulas contain ingredients which help optimise the rehydration process, delivering fluid to cells and quickly and effectively as possible. Some formulas also contain carbohydrates which act to replace lost energy at the same time as keeping you hydrated.
99 Bikes has a huge range of cheap rehydration formulas and tablets from some of the leading brands in sports nutrition: Endura, Nuun, Shotz and more.