Help- ordered wrong brake rotors

[The General]

Sorry Noel, I've been away....

Thanks for the reply Pat, you learn something every day, although after 3 coffees when I first read it early this morning and again after 3(+)wines tonight (one or the other usually works) I cant make any sense of the theory behind it other than the wind creating a whistling effect.  Tell me what I'm missing.
The loading up of the rotors at the same time is rubbish. Think about how the load is transmitted.
Maybe tomorrow morning's coffee will shed new light on it.

Noel

Hmmm...a bit of googling uncovered this for me.   http://www.ford-trucks.com/forums/605913-clocking-brake-rotors-to-minimize-rotor-runout.html
....but it doesn`t solve in my mind why that occurs when spokes are aligned....maybe more to do with lateral alignment than axial. (which is covered a bit under turbine clocking.)   
ummmm....how many spokes are there compared to support bolts? Just looking on Ebay there are 6 bolts but 10 spokes.....so maybe it`s related to machining consistencey at the factory to guarantee minimum runout? 

[The General]

Sorry Noel, I've been away....

Thanks for the reply Pat, you learn something every day, although after 3 coffees when I first read it early this morning and again after 3(+)wines tonight (one or the other usually works) I cant make any sense of the theory behind it other than the wind creating a whistling effect.  Tell me what I'm missing.
The loading up of the rotors at the same time is rubbish. Think about how the load is transmitted.
Maybe tomorrow morning's coffee will shed new light on it.

Noel

Hmmm...a bit of googling uncovered this for me.   http://www.ford-trucks.com/forums/605913-clocking-brake-rotors-to-minimize-rotor-runout.html
....but it doesn`t solve in my mind why that occurs when spokes are aligned....maybe more to do with lateral alignment than axial. (which is covered a bit under turbine clocking.)   
ummmm....how many spokes are there compared to support bolts? Just looking on Ebay there are 6 bolts but 10 spokes.....so maybe it`s related to machining consistencey at the factory to guarantee minimum runout? 

...ummmm, would moving one three bolts (180deg) from spoke aligment be even finer? (sorry, just thinking out loud) 

[ribbert]

Yea Noel, I figured you would mention (in some form) the word "rubbish" in your response... silly me.

No worries Pat, anytime. I glad I didn't disappoint you.

It had been a long night of technical discussions and perhaps my characteristic tact and diplomacy was a little depleted, throw in some confusion over where I was and no time to massage the message into touchy feely language.

If any other sensitive souls on the forum were offended by my brutal and harsh response, I apologise unreservedly and in future will wear kid gloves when typing or maybe just become a plus oner.





















Noel

[Pat Conlon]

 
ummmm....how many spokes are there compared to support bolts? Just looking on Ebay there are 6 bolts but 10 spokes.....so maybe it`s related to machining consistencey at the factory to guarantee minimum runout? 

...ummmm, would moving one three bolts (180deg) from spoke aligment be even finer? (sorry, just thinking out loud) 

Hey Doug, sorry for the late reply, I had to get home and check my bikes...FYI on the Galfers (both OD 320mm and 298mm) there are 6 bolts attaching the rotor carrier to the hub.
There are 9 spokes on the carrier with a button at the end of each spoke.
With full floating rotors I suspect run out would not *as big a issue* as it would be with rigid or semi floaters.

Interesting discussion, thanks fellas...you too Noel. It's cool amigo..Don't change your ways, or the earth will shift on it's axis

[fjfool]

ok, i think i'm done pouting 
thanks for dealing

Noel, how about that recipe?
goat? pfft, prolly just little bites, up here we use the bull- takes a fork and a knife
big friggin balls man!
i got the day off, the old lady has to work= a full day in the garage