Jayme, my first attempt at ketogenic went similarly to yours, though without the cramps. I was running 30 miles a day on the Colorado Trail, with an ultralight camping setup in a fanny pack (too big a fanny pack). What I learned, over a year later, is that my body was not yet that good at producing the small(ish) amount of glucose needed to keep burning fat.
Try this and see if it helps on your next long ride: continue eating as you have, but rather than eating fat during your ride, just have dates or similar source of carbs (honey, etc) to supplement your body's own ability to make glucose. Also, stopping for even five to 10 minutes can allow your liver to catch up with glucose conversion once it is good enough. With time, your body will get much more efficient at keeping the glucose you need as "kindling" for your fat burning fire. I hope this helps! With abandon, Patrick -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.