Just a bit off topic... We rode on Saturday and the DH was teasing me about my two water bottles for a 15 mile ride. BUT I have discovered if I only take 1 bottle I mentally limit myself in drinking and then don't drink enough and yes I attribute muscle soreness to lack of water. I also attribute my huge issue with achilles tendons to muscle cramping from lack dehydration and then overstressing the tendons (self diagnosis) I would rather stop and pee anyday