stem issue.

[pete_mcc]

Hmmm, dunno why I said it was oval...

Because they are marginally oval - any pipe cut at an angle will create an oval, the ovality depends on the size of the angle the pipe is cut at.

CRC ran out many moons ago, they even had some metal ones of their own made to supply the demand. The shortage was caused by syncros using those plastic top caps for a long while as they were supposed to crack if you over cranked the tension bolt thus saving your bearings....genius :roll:

 

[FMJ]

any pipe cut at an angle will create an oval, the ovality depends on the size of the angle the pipe is cut at.

Actually it's an elipse.

 

[We_are_Stevo]

...and me with an OND in...

...yeah, okay, quit while I'm behind!

Shame about the availability though; having much the same problem obtaining a 3mm Cane Creek Interlok top spacer :roll:

 

[Charlieboy28]

any pipe cut at an angle will create an oval, the ovality depends on the size of the angle the pipe is cut at.

Actually it's an elipse.

things like this hurt my head, can someone explain how?

say i have a perfectly circular aluminium bar , i drill a perfectly circular hole and pop it in to check that they are both perfectly circular. I then take my circular bar and i cut it at an angle . then surely to goodness that bar is still circular and if i popped it in my little hole it would be as snug and perfect a fit as before and would remain circular. See this is whay i could never be an engineer, but it defies logic i think that the circularity ( made up word possibley) can be changed by simply cutting it at an angle

 

[Signal11th]

I think it's to do with the angle that it's cut at which causes the shape change.

If you cut a circular bar from one edge at the top to the opposite edge at the bottom you're not going to get a circle are you but then again I'm no engineer either.

If you look at the picture above the second ring because the angle is steeper will have more length on the surface than the top one so it can't be a perfect circle anymore.

 

[Charlieboy28]

see i get that the exposed face would then be eliptical, but it would be manufactured from a circular bar intially and it would be designed to plug a circular hole, and looking at it directly from above it would still be circular.

see this is why it makes my head hurt :roll:

 

[Signal11th]

all depends if the piece was bent in the first place or more likely the cast has an angle already in place.

I'd imagine this would look like a small elbow joint (which one end being a larger diameter) which would allow both ends to be circular?

What we need is someone with one of those fancy hard plastic 3d printers!!

 

[pete_mcc]

Actually it's an ellipse.

All ellipses are oval, just not all ovals are ellipses