I only make my bikes from wood that is cut right outside my back door and turned using water powered machines. Later I assemble the bike using reeds harvested from the marsh nearby. My tires are hand made from my rubber plantation round the corner and my crank is formed from cheese. Oh wait, no. That's Race Face. (Which is actually cheese.)
Bike Forum
where do frames come from?
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Posted 10 months ago #
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didnt know bairstow did filing cabinets
Posted 10 months ago # -
I can't ever remember having to fill up my bike with fuel whilst 'popping' to the shops. Bikes are tiny things compared to cars, whilst there may be energy expended in their manufacture it must be dwarfed by the amount of energy used to manufacture & move a car. If someone can find out how many bikes can be made from a car I will sleep easy tonight.
Posted 10 months ago # -
matt hope you slept well, you could probably estimate how many bikes could be made from a car just by weight. If an average bike is 30 lbs (13 kilos) and an average car is 1.5 metric tons then you could 115 bikes from a car.. probably..
Posted 10 months ago # -
But does the Carbon in Carbon Fibre come from oil is the most stupidest of quotes i have ever heard.
But to help you Yes if you burn oil it produces Carbon.Nope - sensible question - stupid answer.
Carbon fibre probably does come from an oil source. It can also come from a rayon source, but the processing for that is pretty energy-intensive and uses nasty chemicals.
They use graphite in squash and tennis rackets. Does that carbon come from oil too? If not, where does it come from?
(given the price of a good carbon-fibre full-suss I suspect melted-down diamonds is the actual source of the carbon...)Posted 10 months ago # -
They come from the goods in lady, at work.
You click some buttons on the interweb page.
And she phones to say you have a box that doesn't have pneumatic stuff in.My mate had a bathroom suite delivered to work. God that was funny. She made him walk through the factory with the toilet pan.
Posted 10 months ago # -
Grantway is the google master. Bow before him.
Posted 10 months ago # -
Is with carbon is not really the carbon element, but the way carbon is used. It is used as part of a composite structure.
many composites pose signification issues when they fall out of the chain of utility as it is often very hard to recycle a composite materials even when the constitute parts on their own could be.
glass reinforced plastic (GRP) is staring to cause an issue in this respect in rleation to the diposal old grp boats, sheds, plant cabinets roofs etc etc
Posted 10 months ago # -
Oh - just found the article I was looking for:
Is-mountain-biking-as-green-as-it-seems
That's sort of an odd article- surely nobody thinks that it's particularly green? I mean, compared with 4X4-ing or something it's not as un-green but it's all consumer stuff made in factories that we buy more of than we need.
Posted 10 months ago #
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