How far do you guys reckon I'd have to practice cycling before taking on the Dynamo? An actual 120 mile practice run? Or 80, 90?
OK.
Another rule of thumb, in the forest of thumbs.
If you ride regularly
and commute daily, whatever your weekly mileage is, you should be able (with the right nutrition / hydration) be able to complete this mileage in one hit.
IME I have seen this to be largely true.
If it has fallen over, it has been due to people errrr... falling over, mechanicals or some other condition which would've prevented them from doing the distance whichever way you cut it.
I wish you much luck, and hope that you get it together to do the Dun Run.
Oh, and annuver fing.
Don't succumb to peer pressure.
I returned to cycling, after a ~25yr absence,
because I'd read about the Dun Run. It was
the event that caused me to buy a bike.
That was 2 months before the ride in 2006.
Despite relentless and well meaning peer pressure, I refused to be drawn into the ride that year.
I wanted to enjoy it, as opposed to suffer it - I was struck by the magic of it which, despite having done it loads of times since (More than 7, less than 10 - I've lost count), I think is still there.
I really ought to grasp the mettle and give it another go.
You should too.
ETA: Make sure your return journey, however it manifests itself, is cast iron sorted. Anything less, can lead to a morning of disappointment.
With the capacity to pi§§ on the highlights of the night before...