I'd say for someone who's not done a 10mi before 28min is a good time to aim for. It's quite easy to misjudge the distance and go too hard or too easy. After a few TTs you should have it nailed and find out the point where you can pull out the best times.
After my first TT I was constantly improving every week until after 15 TTs my time leveled off.
Atm, I can pull out a 25min 10 on my fixed TT bike. I'd say that I'm not as fit as you lot. There's something to aim for. I doubt you will finish disappointed in yourself.
I'd say for someone who's not done a 10mi before 28min is a good time to aim for. It's quite easy to misjudge the distance and go too hard or too easy. After a few TTs you should have it nailed and find out the point where you can pull out the best times.
After my first TT I was constantly improving every week until after 15 TTs my time leveled off.
Atm, I can pull out a 25min 10 on my fixed TT bike. I'd say that I'm not as fit as you lot. There's something to aim for. I doubt you will finish disappointed in yourself.