I signed up for a four day ride in Minnesota starting August 17. You need to be able to ride 60 to 75 miles a day. It is fully supported and I am not camping out, but staying in hotels.

I am concerned that I am not fit enough to get ready on time. I have been riding a couple of years. Before that I was very sedentary. FWIW, I am 58. I started out obese and got to normal weight. Last year I rode 3800 miles. This year I have about 2600 so far. I am slow.

I have done a number of 60 mile rides with no problem and one 75 mile ride. I am slow so they take me quite a while but I do just fine. My problem is doing back to back rides if the rides exceed about 25 miles. They exhaust me. Yesterday I did 32 mile and today I did 45. I was so tired when I came home that I slept for three hours. About a week ago I did a forty plus mile ride, the next day 10, and the next day another 40 plus mile ride. No problem. I just can do them back to back.

I am wondering if I should bail out on the organized ride. I just can't seem to get over the hump of doing long days back to back. If I want a refund I have to cancel in the next week.

Any thoughts?