I’ve enjoyed century rides and the training required to finish a hilly 200k has improved my physical fitness substantially. I’ve also fine tuned my equipment and my bikes have the correct fit, accessories and drive-train for a 400k and beyond. I’ve also adjusted my fuel and hydration to avoid endurance issues related to intake.
I’ve pushed myself hard this year. I completed a metric 100 in 3.5 hours on a 90+ f degree afternoon and also 100 mile century in the same kind of weather. I’ve done 140 miles in one day while riding unsupported with a friend.
But the prospect of completing a Brevet series still seems impossible. I feel like I would need to build a fitness base of 150 miles a week for 6 months and have a trainer reviewing my training data that I download from my Garmin device before even trying a 400k or longer event.
Is mental prepared-ness the final frontier?