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@jim1985
I've been getting quite twitchy / crampy calves in the few days after a big ride since I've started riding longer and harder at the weekends.
Do you think this may be bacause I'm lacking some vitamins / electrolytes whatever? If I'm out training on my own I take some High Five Zero electrolyte drink, or if it's a sportive I get some energy drinks down...
any tips / advice appreciated