Roman Black wrote: > we're the poor fools that have to drill the heck out of something > that we then have to ride at 260kph... :o) Roman: Here's my input. Your aluminum tube weighs about 1 pound per foot of length; assuming that it's 3 feet long, even removing HALF of its weight will only save about 2 pounds. Hell, even removing ALL of it will only save THREE pounds. Seems to me that it'd be much easier (and safer) to take three pounds off the hero riding the bike than to take weight off this presumably- important (else it wouldn't even be on the bike) component. Have your rider drink one less pint of water before the race -- that's a pound. Spend a couple-hundred dollars more for a lighter helmet/boots/armor -- that's another pound or two. Don't fill the tank all the way if you don't need to. The risk you're taking by weakening this component of your bike seems WAY out of proportion to the potential benefit. Just my opinion, I could be wrong. -Andy === Andrew Warren -- aiw@cypress.com === Principal Design Engineer === Cypress Semiconductor Corporation === === Opinions expressed above do not === necessarily represent those of === Cypress Semiconductor Corporation -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics