Hello Blodwyn.
Here's my spec. I'm a Man. 5'9". 60 years old about 14 1/2 Stone. I have a full Car and Motorcycle License. I want to build a certain level of fitness so that I'm not the fat git at the back holding everyone up.
I thought the average speed for Audax was 15 Kmh Which is what I gleaned from reading posts on here. but someone just said it's 25 Kmh.
If I may, I'll contact You and Kim directly when I have ridden a bit further and faster.
To clarify. Average speed is 15kph. But that includes stops. So if you cycle at a constant 15kph, you won't have time to stop for food, or to pee. So generally you want to be a bit quicker. I'm happy if I average 20kph when moving.
As mentioned up thread, this gives me 10 hours to ride, and 3.5 hours for eating, admiring the view, and any mechanicals. I do know people who ride a lot faster. On the last 200km BRM I organised one rider arrived on the dot of 0645. Giving a 30kph average including stops. Which is bloomin fast. The final rider came in at about 13 hours.
Don't worry about 25kph. You may get there, but it's not necessarily, and setting it as target may be disheartening.
An Audax is in theory a solo event. Being slow isn't a problem, you don't hold anyone up. People might disappear up the road, but you're not holding anyone up.
No good organiser is going to have any problem with you arriving at 13:29, as long as you've not taken the piss by sitting in the pub round the corner having a beer or 3. An organiser knows the time limit on the ride, and signs up to be there for the whole time.
The biggest sin in Audax is to abandon the ride without telling the organiser. Being slow is entirely ok. You don't hold anyone up. Ride your own ride. Tho you might do a lot of riding alone. (I've done almost all my Audax rides completely solo as everyone is quicker than me).
So. Don't worry too much about speed. 25kph is unobtainably optimistic for a new audaxer anyway.
Just ride. And that invite for the Amsterdam Audax events is a genuine invite.
J