Good for you Steve...
I can highly recommend a primarily fruit diet. I switched to a mainly fruit based diet back around 1992 when I was seriously into Triathlon. I switched after I heard Dave Scott ate 23 pieces of fruit a day! Dave Scott, Inc. | 6-time Ironman World Champion
I can say it worked for me although with the amount of calories I burnt during training hunger was a constant companion. It's funny - a lot of people are now getting clued in to things that were common knowledge in Triathlon circles 20 years ago - such as you don't need so much protein, high fruit, high carb, plenty of exercise, early to bed early/early rising. The mental and physical benefits are huge.
These days I don't do so much cycling, but am still a keen swimmer and runner - so I can vouch for a mostly fruit based diet. However, I don't eat a raw diet as I have some pasta and rice in there and the occasional bit of fish (I just love seafood too much).
I believe that due to my diet I have aged less than people the same age and the exercise has helped too - but mostly I have tons of energy and am still very active doing swimming, diving, running and travelling all over too.