> Donald Gillies wrote:
>
> > thanx for posting the picture of the 41T ring and comment.
> I read many
> > months ago on this list that the 41T campy ring would cause
> the chain
> > to grind into the chainwheel arms, leaving gouges. Perhaps
> the TA 41T
> > ring is "out of round" because they modified the curvature
> to fix this
> > problem ?? Those french are soooo tricky ...
>
> No, it's still a problem. On my fixie (with SR Royal crank) I
> filed down
> the arms so they wouldn't hit the chain. Avocet/Ofmega
> actually milled
> the arms to accommodate the 41T ring:
>
> http://www.os2.dhs.org/
Doesn't it make you wonder why Campagnolo didn't just remove the outer most 1 or 2mm from the spider section of all the 144mm BCD cranks? After all, it looks to me as though the "lip" that supports the chainrings is at the same diameter for both the 144 and 151mm cranks; i.e. they're the same forging. For 144mm they seem to have simply moved the bolts as far inwards as possible (about 2mm?) without having them interfere with the mounting lip. If so, why not remove the excess material from the top edge? Fred Rednor - Arlington, Virginia, USA
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