Originally Posted by auk
Many of the CXP rims, cxp30, cxp14, and cxp33, have an internal nipple bed, so eylets are not necessary.
Many of these rims use a proprietary eyelet. It is not a normal rivet style eyelet but internal. They are Alu as well so they keep weight down a bit. The CXP line are some of the strongest rims out there.