Any ideas on the type used in this bike component maker's logo?

larger sample here on a wheel: http://www.amclassic.com/enlarge/carbon58.jpg
and a vector version on the last page of the PDF here: http://www.amclassic.com/pdfs/OwnersManual.pdf, although this looks rather anaemic and poorly spaced compared to other two samples, as if it's missing its outer edge?
cheers
