Bike Forums - what is this???

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Bike Forums (https://www.bikeforums.net/forum.php)

- Singlespeed & Fixed Gear (https://www.bikeforums.net/singlespeed-fixed-gear/)

- - what is this??? (https://www.bikeforums.net/singlespeed-fixed-gear/423903-what.html)

protoculture

06-01-08 01:44 AM

actually pv=pv

vobopl

06-01-08 02:31 AM

Quote:

Originally Posted by AndersMN (Post 6794156)

Think about how much more difficult it would be to blow up a balloon if it were held under a brick. Much more compression is used in gas station pumps, regardless of the desired PSI. If you haven't figured it out yet, try pumping your car's tires with a bike pump. I'm guessing not many of you have actually used a gas station's air compressor?

Are you for real? Pressure is pressure. The force you will feel pumping depends on pressure and the area of the piston in the pump only, whatever it is being pumped. Pumping car tire with bike pump sucks because of small piston in the pump, scaled so you can pump to high pressures, moves too little air in each stroke.

ornmnt

06-01-08 06:32 AM

Quote:

Originally Posted by skinnyland (Post 6786504)

Can a gas station compressor adequately fill bicycle tires? They're made to take car tires up to ~60 psi (or so, give or take, YMMV, whatever), while bike tires need to get above 100. Do those compressors put that much pressure into a bike tire? (I've never tried...)

I dunno, but I managed to blow up a tube once using a gas station compressor... whoops.

~Stuart~

06-01-08 02:10 PM

BAHAHAHAHAHA THIS IS THE MOST ******** THING EVER

well no actually the one about how you could syphon a car tire into your bike tire and increase the pressure in the process, was the stupidest thread ever... this is a close second

(anyone remember the argument someone made that the PSI came from what size the hole the air was being forced through? HAHAHA)

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