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The setup I used was latest 10speed Centaur. Matching levers and rear mech from separate eBay purchases with a 130bcd FRM crank I had in the spares box to overcome the single speed chain ring issue.
The left lever I gutted the main mechanism relatively easily as HelicopterHelicopter has said but I did so after looking at the spares parts files on the Campagnolo website.
The biggest issue for me was the cassette size with Campagnolo.
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Australia again but .. https://www.cycloretro.com/pricing .. do pantographing to parts. There's some pictures somewhere on the web .. http://road.cc/content/tech-news/216195-campagnolo-potenza-gets-shiny-makeover-cycloretrocom .. of a Pontenza group set they did recently
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I have a pair of the original A23 rims and they are good quality and still as 'straight' as the day they were built. If you dig in the thread you'll find a post I made at the time I received them from the wheel builder. But .. Velocity made some design changes to make it 'tubeless ready', moved production from Australia to the US and now there are reportably a lot of QC issues with the rims.
Sufficient to say when the wheels need new rims I'll be looking at other sources to replace the A23's with.
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You may want to read this as it seems certain tyres where more problematic then other tyres for coming off the rim ..
http://weightweenies.starbike.com/forum/viewtopic.php?t=108048
On a positive note I've had zero issues when used road tubeless.
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Same opinion as russmeyer.
The crown is aluminium and the blades are carbon. Look at the fork on the attached to see what I think the construction of the fork is like under the paint.
What you are seeing is the paint cracking at the joint line, as the the crack runs all the way around the fork, due to the difference in flexibility of the two materials.