Anyone tried this? Apparently it's an old trick of distance runners, but I only came across it recently. Sodium bicarbonate. You dissolve a little in water and drink it half an hour or so before you ride and it increases stamina during the ride and reduces fatigue afterwards. I read of it in the health section of a newspaper, where it claimed that the bicarb, which is alkaline, neutralises the lactic acid in your muscles which causes that burning ache, in much the way it neutralises the acid when you have an upset stomach. That explanation sounds a little nuts to me, but I've been trying it recently and it seems to work. More energy during a ride and less ache afterwards. I'm guessing it's more to do with replacing lost salts, in the way those drinks you get in cycle shops claim to do. They're fruit flavoured but what they mostly taste of is salt. Anyway, bicarb is cheaper and as far as I can tell, definitely helps.