Thank you to everyone! You’re all making solid suggestions and asking great questions I’ve never asked myself. The week up to the race I cut out all processed foods and just keep to my healthy diet with no focus on decreasing fiber intake, but I’ll be more aware of that next time. The night before I have a plate of pasta and one large beer (helps calms my nerves and get me to sleep). I watch my power and HR very carefully to make sure I don’t overbike, but yes, I’ve heard this can cause GI and cramping issues on the run, albeit, cramping has never been an issue for me. I’m also careful about the amount of food and drink I take in every hour and keep on a schedule, tweaking as needed for weather conditions, etc. I think I’m going to try Maurten because I’ve been hearing great things about their products and test and condition my gut during my training bricks.