Why don't bicycle wheels buckle?

Bicycle spokes are easily bent. When you sit on a bicycle, how come the wheels don't collapse?

Why don't bicycle wheels buckle?
Bicycle spokes may be easily bent if put under a bending load or will buckle if put under compression, but they don't stretch when put under tension. The rim is also fairly weak without the spokes and can be pushed or stretched out of round, but it still has some stiffness and its circumference won't easily change if it is distorted in this way.





When you sit on a bicycle, the hub tends to be pulled toward the ground. The spokes above the hub are under tension, transmitting the force to the top of the wheel rim. This would make the wheel rim collapse into an oval if it could do so without the sides of the rim to the front and rear of the bicycle sagging outward in the process. However, the spokes going to the forward and rear part of the wheel rim prevent the rim from going pear-shaped in this way.





The spokes are also not fastened to the center of the hub but to either side. This prevents the hub from deflecting sideways because half the spokes will be under greater tension if the hub tries to deflect in that way.





Finally, the rim cannot rotate with respect to the hub because the spokes don't run exactly radially from the hub to the outer rim. Instead, the hub flange is comparatively wide so that half the spokes are under tension if the rim tries to rotate forward with respect to the hub and the other half are under tension if it tries to rotate backward. Either way, the rim is not free to rotate.
Reply:When you sit on the bicycle, some spokes are under pressure. However the ones at the sides are under tension, and stop the wheel from buckling.



flower

Where can i find a jedi belt buckle?

Looking for a belt buckle like the one used by Obi Wan in prequels?

Where can i find a jedi belt buckle?
in the LOSER stores





*giggles*





:9
Reply:Check the starwars.com for a start. you may have to go to a fan site and have someone make one. That's what I had to do for a few replica items.
Reply:You can find then in Barnes and Noble or at Borders Book store.
Reply:1.Heads up,you're gonna look like a geek.


2.Try eBay
Reply:I thought there belts were tied knots. Not buckles?



Loose Teeth

Where can I get a replacement belt buckle for my belt?

I have an old belt which had a bucklet that fell apart. I'd like to replace the buckle so not to waste the belt. Where can I get this replacement at? Is that something they sell at department stores in the US? Is it easy to install?

Where can I get a replacement belt buckle for my belt?
if u wud modify ur question and tell me if ur belt is a name plate then i mite be able to help u
Reply:Well it is called a STORE.
Reply:i'd try to go to a western store!!
Reply:well if your from texas..a tombstone will work.Them some bitches are huge
Reply:Boots and Bridles (it's a country store that sells this sort of stuff)
Reply:try hot topic if you know what store that is. if you don't than try any local clothing store.
Reply:Tombstone is a good one so is instyle, the buckle, and practically anywhere that sells accessories



skin lesions

Where can I get a custom belt buckle?

I would like to get a custom belt buckle made for my best friend for Christmas. He is really into Rebel Flags, so I want to get a rebel flag with my nickname for him, Shaggy, across it.. Does anyone know where I can have this done?

Where can I get a custom belt buckle?
Try the belt buckle shop. com, they have everything and do customs.


http://www.beltbuckleshop.com/Merchant2/...



improve skin tone

Looking for a Pootie Tang Style Belt Buckle?

I'm looking for a belt buckle similar to the one featured on the movie Pootie Tang.





I've been to 2bhipbuckles.com, and searched on yahoo and I haven't found anything. Have you seen any good places?








Thank you!

Looking for a Pootie Tang Style Belt Buckle?
try ebay..



neutral skin tone

What is it like to work at Buckle?

I am considering applying to Buckle and I wanted to know if anyone knew how the pay is for a part-time position. I also wanted to know if they had flexible hours. If anyone has any feedback it would be greatly appreciated!

What is it like to work at Buckle?
why don't u call them and ask?



skin tone

I had a scleral buckling surgery about 6 months ago. I see alittle improvement.?

how long does it take to fully heal? I just barely started working out again, is there a risk of damaging anything?

I had a scleral buckling surgery about 6 months ago. I see alittle improvement.?
OUCH! That suggests that you had a retinal detachment. By now, I would think that what will heal, has healed. Now as for "working out," I would not play ANY contact sport where there is a risk that your eye may be hit. At the very least, you must use an eye guard. But sometimes, it doesn't even take a direct hit to the eye, just a blow to the head that causes violent shaking to re-injure the eye. If you are lifting, remember to breath out while you are exerting yourself. Holding your breath will increase pressure throughout the body and again, may injur the eye. You might want to take some good multivitamins (like ocuvite). I'm not really sure if they will do anything, but who knows?



skin tone