So what's it actually like riding one of these things? Do you feel like you are constantly on the verge of a faceplant? What are they like to corner on?
I don't know about racing an original 1880s machine, but I can tell you that a Summerfield MkV is a thing of sublime beauty to race. Having ridden Kat's (also repro) machine, I'm sure she feels the same way about her bike.
I had a sound advantage from the word go, I think. My penny was probably one of the lightest machines on the grid and it had a slightly smaller wheel than most (49" as opposed to a more usual 52" or so). This meant that it was more responsive to pedal power, whether into a corner when I wanted to scrub off speed, or out of one when I wanted to get on the beans.
Also, the original machines were racing on vintage-spec rubber. More modern bikes like Kat's and mine are equipped with hooked Velocity rims which means we can run cut-up Greentyres; which although abysmal on a 700c wheel, are surprisingly responsive on a penny.
Of course, none of this takes that much away from the feeling of
ohmygodsImgoingtostackitagghhhh! that you regularly encounter when you're racing a high bike. The C of G isn't anywhere near a regular safety bicycle and you're always acutely aware of the way in which the slightest impedance to that big wheel is going to result in your centre of mass deciding that it's had enough of lagging behind and wants to get up front where all the action is.
When were were doing our warm up and course familiarization laps, I was astounded by the angles of dangle that the Czech was managing round those tight triangular corners. But after ten or twenty race-pace laps, I was getting the bike over like I'd never imagined I would and it all started coming together rather well. Like any other kind of crit racing, it's all in the corners and you've just got to find the edge of the tyres' grip and be sure you're riding within their envelope of safety. You've got to keep on getting round people and you've got to stay aggressive all the time or you're not going to be competitive.
Penny racing is a total,
total rush. I'm not going to wait another ten years to do it again.