TwinSpar, try thr Endurox Excel caplets. Good stuff but it won't satisfy your thirst endurance factor goes way up after a couple of weeks. I went from riding my Mt. bike a max. of about 8-10 miles in the summer heat and hills to 20 miles in about a month! Cytomax drink is ggod stuff I like it more than any of the other drinks although I have not tried Revenge yet but plan to soon since I need to mail order some parts and gear.
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Air is for planes
KTM 360EXC