Other serious advice - hubs. One of my bikes has 7400 series Dura Ace hubs and it is about an mph or 2 faster than any of my other bikes. Also, if you're trying to beat a record, find a day with a tailwind. That bike, on a day with a strong tailwind, I broke 45 mph on one descent that's part of my Sunday rides, where I usually max out at 42.
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"Don't take life so serious-it ain't nohow permanent."
"Everybody's gotta be somewhere." - Eccles