i was just wondering why people put what looks to be like a tire tube under their saddle. its attached usually to their bike where rear brakes would be and under the saddle. i am just wondering if there are any physics behind it or its just a fad.

Its a bike chain with a tube around it to keep people from stealing your saddle. I rock one.

can you buy them like that or do you have to buy a chain and put it in a tube?
thanks for the answer

Use an old popped tube, either buy chain, or save this one the next time you upgrade/replace.
Never seen them sold.

can i get pics of people who do this? i saw how they look but not a close up of it.

silly me...i thought you were describing a spare tubular.

measure out appropriate length of chain. cut appropriate length of old innertube, slide chain through said innertube .secure chain through rails of saddle and seat stays, put chain back together.

its rather simple.

+1

i wouldnt bother with this. bike chain is easy to break by twisting. get yourself some non standard nuts or put a greased ball bearing in the hex nut hole.

How are you going to twist the chain?

If youre smart enough, you make the chain just long enough, so that its tight when you have your seat raised up as far as you ride it. Then the only way someone can take off the seat from the seat post, is to full unscrew the seat post clamps, and then take the seat and twist it around the chain.

But if someone sees someone spending THAT much time with a seat, on a parked bike, Im sure they would move on to the next one.
Unless they brought a chain breaker.

I can break a chain with a flat blade screwdriver

i can break a chain with my teeth

The ol' "greased ball bearing trick". Love it. Haven't heard talk of this technique in a long time. Classic.

yeah...WTF is that? like you couldn't pick it out? what am i missing?

Stick a ball bearing in the socket of the bolt on your saddle. That way you can't stick an allen key in. Just another way to deter theft, but it doesn't require you to strap your saddle down with a bike chain. Similar to the special locking bolts which require a specific key tool to unscrew them.

I can break a screwdriver with my teeth.

And I believe the other method is to superglue/epoxy/hotglue the bearing in. Then you can remove it later using acetone and a q-tip or something similar to remove it.

This is my preferred method to lock up my saddle. (https://antisociology.files.wordpress...2/saddle.jpg)I understand how the other methods work. although i hate to have to go through so much trouble just to adjust my saddle on the road or even at home for that matter. I would consider it if my bike was left out for shorter amounts of time and my saddle position was pretty much dialed in. Unfortunately, right now its not. p.s. i also have heard of filling the cap screw head with a solder, this seems like a pretty good alternative to other methods mentioned.



Cheers,

Kelvin

sorry, first link was no good!

https://antisociology.files.wordpress.../02/saddle.jpg

things like this make me glad I live in a town which such little bike theft. Well, there is theft, but thats only because people don't understand the concept of locking up a bike even if its on your porch. Never once heard of someone's lock being cut.

are you saying you steal bikes then?

no, he's saying 'i can break a chain with a flat blade screwdriver'

he can break it, therefore he can steal anyones bike if he really wanted to.
whats a good way to lock up your bike anyway? take off front wheel to ulock it around frame and backwheel? i heard not to bother with cables since people can just cut them off. i can see how easy it would take if you had wire cutters.

what?

I pull the front wheel and run a u-lock between the rear wheel (inside the rear triangle), bike stand, and front wheel. I usually can't fit a frame tube through my lock since i have a evo mini, but you might want to if you have a normal sized lock to minimize space inside the shackle to leverage attack with.

ideally you'd be running a NY ulock for front wheel and a ny chain for the rear wheel and frame to a rack, but that would cost like 200 dollars and weigh more than your bike.

lastly, I think usually it's best to get a beat up saddle and not bother locking it at all. my gf had a regal knockoff that came on her bike that I chained with a cheap padlock. a thief cut the chain and stole the saddle, and i'm guessing they thought it was nicer than it really was since it was locked up.