Att Johan. Non nipple related Q.

[Mudsimus]

Why is the brake rub on the rim only visible right beneath the spokes and not right round the rim?

[Spinnekop]

ABS?

[CaptainDura]

erm.....because THAT rim is wider in that area?

[straatvark]

It goes with the frame paint job

 

 

[Mudsimus]

I dont think its that simple. I think I might be onto a major scientific break through that will require formulas and stuff to prove.

[TNT1]

 

erm.....because THAT rim is wider in that area?

 

Weirdo... everyone knows its cause the brake blocks swell and contract accoeding to temperature, so sometimes they rub the rim and sometimes not...

 

[TheLegend]

I've also got that on my one rim. the rub is exactly there where the spoke is being pulled towards the side of the relevant brakepad.

i'm sure you'll find your own explanation for that.

 

[Mudsimus]

Cant be legend. The rub is uniformely around the wheel. Even on spokes that pull away from the affected side.

 

And go away...I'm doing an experiment.

[TheLegend]

as far as I can see the rub is exactly where the spoke enters the rim, no matter what side the spoke is being pulled to. don't be stupid muddy, you can find your own answers...only you have to use your brain.

 

sorry for going here, but it said nipple in the thread heading so I had to be part of it.

 

[TNT1]

 

Cant be legend. The rub is uniformely around the wheel. Even on spokes that pull away from the affected side.

 

And go away...I'm doing an experiment.

 

  A rim or hub experiment? Are you cornhole whathisface? Wheres muddy homo?

 

[TheLegend]

and, by the way, in a more direct way this question is absolutely nipple related! I think Johan will back me up. 

[Johan Bornman]

The rim is essentially a U-channel beam. If you apply localised tension to it as the nipples do, it distorts the channel locally. The wear spots you see is where the distortion is outwards and the unrubbed spots where the distortion is zero or inwards. On wheels with far less pokes this is not as clear since the brake pads are shorter than the waves and it follows them better.

 

However, this is something of the past as no respectible rim manufacturer will anodise the brake surfaces anymore. They've somehow come to realise that a layer of glass doesn't make for good braking.

 

They now all machine the anodising off the side.

 

 

[TheLegend]

 

The rim is essentially a U-channel beam. If you apply localised tension to it as the nipples do' date=' it distorts the channel locally. The wear spots you see is where the distortion is outwards and the unrubbed spots where the distortion is zero or inwards. On wheels with far less pokes this is not as clear since the brake pads are shorter than the waves and it follows them better.

 

However, this is something of the past as no respectible rim manufacturer will anodise the brake surfaces anymore. They've somehow come to realise that a layer of glass doesn't make for good braking.

 

They now all machine the anodising off the side.

 

 

[/quote']

 

exactly my words!

 

[Mudsimus]

But I didnt ask for you're opinion..did I? if I need info on nipples or beer then I'll ask you. ok?

 

Thanks JB!

[Johan Bornman]

 

 

OK, OK, I grudgingly back you up.

 

[TheLegend]

 

But I didnt ask for you're opinion..did I? if I need info on nipples or beer then I'll ask you. ok?

 

Thanks JB!

 

Armleuchter!