Disc Rotor Bolts

[Hardtailrider]

<DIV>This is the stuff natural selection is made of. I just hope you haven't procreated yet.</DIV>

 

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<DIV> </DIV>

 

 

Take a look at the Darwin Awards:

 

'The Darwin Awards honor Charles Darwin by commemorating those who yield to natural selection and "remove" themselves from the gene pool...thereby ensuring that the next generation is smarter by one'

 

http://www.darwinawards.com/

[Mellow]

ask someone(second year civil/mechanical engineering budy should do) to work out the shear on the bolts then you'll know - though you may argue that the 6 bolts also help with the in plane deflection of the rotor.

 

i recall reading/hearing julion absalon removing some bolts on his rotors and crank - then again, he has got pro mechs looking after him.

[kosmonooit]

 

No. Titanium is weaker than steel.

 

Steel weighs twice as much as Titanium and is twice as strong.

 

I don't think so, given the extensive use of Ti in aerospace, esp. jet engines. Here's what Wiki says about Ti:

 

"The two most useful properties of the metal form are corrosion resistance and the highest strength-to-weight ratio of any metal. In its unalloyed condition, titanium is as strong as some steels."

 

Ti is an amazing metal but its one of the most expensive around. Also 'steels' are many and varied, depending on alloys and carbon content all which great effect strength, corrosion resistance, hardness, brittleness etc etc

 

I def. wouldnt use Al rotor bolts, esp. not three of them.

Edited February 17, 2011 by kosmonooit

[manbearpig]

Rather get a 20mm hole saw and drill 10 holes in your frame. Then fill your tyres with helium. Also try draining half the brake fluid out the calipers. The safer option to lose a bit of weight would be to do a little Bee dance when you're sitting on your morning pottie and shake off that last little drolletjie thats hanging from your hogs eye.

[DawieO]

Apparently Sauser does this trick on his rotors.

 

Use it, don't...

[Ronald22]

<P>Someone said I should do it to drop weight off my bike, he's done it to a few of his guys bikes and ive also seen a few people who have done this, but honestly i'm not sure about how much weight i'm really going to save? <img src="https://assets.bikehub.co.za/legacy_images/smilies/smiley5.gif" height="17" width="17" border="0" align="absmiddle" alt="Confused" /> </P>

 

The person who is removing bolts from your disc is an idiot.

 

would you drive your car on the highway with half the wheel nuts?

 

If you would... then sure taking disc bolts out is a great way to save weight.

 

Its stupid and dangerous.

 

Put ALL your disk bolts back in.

 

rather buy carbon handle bars or a new wheel set.

[Reghard111]

Most cars also had three wheelnuts....now they have five.

[Ab 1]

<DIV> </DIV>

 

<DIV>No. Titanium is weaker than steel.</DIV>

 

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<DIV>A useful rule of thumb for these three common structural metals is a hierarchical one of halves. </DIV>

 

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<DIV>Steel - Titanium - Aluminium.</DIV>

 

<DIV> </DIV>

 

<DIV>Steel is the strongest and heaviest and aluminium the lightest and weakest.</DIV>

 

<DIV> </DIV>

 

<DIV>Steel weighs twice as much as Titanium and is twice as strong.</DIV>

 

<DIV> </DIV>

 

<DIV>Titanium weighs twice as much as aluminium and is twice as strong as aluminium.</DIV>

 

<DIV> </DIV>

 

<DIV>Although "strength" is a vague definition unless you know what application you're talking about, the rule remains more or less true.</DIV>

 

<DIV> </DIV>

 

<DIV>Strength can be measured in various ways - tensile (pulling) strength, compressive (pushing) strength, shear (twist) strength, hardness, roughness etc etc.</DIV>

 

<DIV> </DIV>

 

<DIV>It is a common misconception that Titanium is the ubermetal that is stronger than anything.</DIV>

 

<DIV> </DIV>

 

<DIV>It's mystique comes from its rarity duringn the Cold War. The Russians who had the most Titanium deposits and lots of cheap power stations to extract the stuff (remember Chernobyl?) used the stuff in the hulls of their ominous missiles.</DIV>

 

<DIV> </DIV>

 

<DIV>Titanium (like aluminium in the 2nd world war) wasn't readily available for civilian use and it developed this mystique.</DIV>

 

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<DIV>The iron curtain came down, Ronald Reagan and Whassisname the Russian with the port wine mark on his forehead famously tee'd off with a Titanium drivers made from molten down missiles.</DIV>

 

<DIV> </DIV>

 

<DIV>Suddenly Titanium was available to all and sundry and it became a fashion metal finding its way into jewellery, watches, sports equipment and orthopaedic gadgets.</DIV>

 

<DIV> </DIV>

 

<DIV>Like gold and diamonds, it has artificial value.</DIV>

 

<DIV> </DIV>

 

<DIV>I expect to be shot for this.</DIV>

 

Steel expand more than Titanium but it depends on what you use it for.For example the space shuttle uses a lot of titanium.

Bolt wise Titanium.

Building strucherm Steel as it flexes better and is Half the price of Titanium.

 

Test it for yourself using a torque wrench.Titanium will strep the housing threads before it brakes.Steel will just snap of at the head.Speak to a good tap and die tech.

 

ZAR Taps DJ

Edited February 17, 2011 by Ab 1