Thanks Daz, I found that too and proceeded to remove my block... initially I wasn't strong enough to get the lockring undone, so called a friend, who could not make it until very early this am (before his race elsewhere) so decided to get the HUGE wrench that I use for uncoupling my gas tank out and with the extra leverage of the much longer handle managed to get it off
The other block was easier to remove... Bothe were cleaned and put back on the other wheels... so I did use the Mavics after all...
But... It was BLOODY HARD! It was a handicap race, so the 4th cats and women set off first, followed by the 2nd/3rd cats and those followed by the scratch group of really fast riders... 4 lap course... so I get dropped by the 4th cat group by being wrestled off the wheel I was holding and pushed to the side!!! :-O when we go up a hill at the end of lap 1... and I keep riding, as I am planning on jumping on the next group... So they come and I jump in and... the pace of that group is much more even, so I stay with them, bury myself in the bunch. Then when we go over that hill again, I struggle to stay with them and there are I am, dropped again, with another 1 3/4 lap to go :-O
So decision time: do I TT round and see it as good expereince and practice and still finish? There is a women's race within this race, 7 women entered, two are either behind me or stepped off... so if any of the others puncture, crash or drop out, I may just stand a chance LOL... So I continue, on my own... Thing is, I managed to maintain a pace averaging 24 mph, on my own, on an undulating circuit... So although I came in last, I still finished! Others got lapped or stepped off... so they in theory were behind me!
I learnt two things: I need to improve my climbing and I need to work on the surges, change in pace...
I also have just entered a 50m TT, because if I can average abt 24 mph for 45 miles, on a roadbike, on an undulating circuit, I can probably do quite well in a 50m TT
Knackered legs now...