Seems double eyelet were a carry over from the Sew-up rim era.
since then the engineering of the die shapes that the aluminum is extruded from
has become more sophisticated, the metal where the spoke hole is, made thicker ,
and the double eyelet , less important ..

changing tight tires on MA 40s which is double-ferruled, is a PIA
in comparison with one with a lowered space between the Bead Seats ..

being just a QBP brand name maybe they just didn't reorder them
from whoever they got to make them .

maybe the extrusion die wore out, and as sales was slow,
they didn't pay for a new replacement extrusion die to be made.

They're not double eyelet or 36 hole, but I have Sun Ringle Rhyno-lite rims that are rim brake compatible. I bought mine with Shimano disc hubs as already built up wheels from Jenson. They're not light by any means but they're the most bomb-proof set of rims I've ever owned. They're 32 hole with double-wall triple-box construction.

Double eyelets are not necessary or even better, there is a reason so few rim manufacturers are using them. I have seen a number of Open Pro's (double eyelets) with spokes pulling through and these were not built under overly high tensions. I have also seen a number of rims with single or even no eyelets last for tens of thousands of miles under very heavy loads (loaded tandems). It all comes down to a well designed rim and a good builder.

Some of my favorite touring rims are the Sun Rhyno Lites (not always the most round but always very durable but it is very inexpensive), the Velocity Atlas or NoBS if you are OK with no eyelets are. No eyelets on this rim seem fine so far and was designed to not need them, I have tried my best to destroy a set on my cargo bike and so far they are flawless despite a having a combined weight of more than 400lbs and almost all of that over the rear wheel at times.

+1

Sun Rhyno Lites are the way to go. I used to only run 36H's, but I've successfully run a 32 hole on my front rim with Sun Rhyno Lites (they come in both 36H and 32H, should be able to get them pre-built with both disc and non-disc hubs still too). CR-18's are good too.

I used to pretty regularly break spokes before I switched to Rhyno Lites (Clydedale+very rough streets, night riding and high miles). I don't think I've broken a spoke since I've switched to them.

I've only killed one Rhyno Lite rim so far, and that was due to the brake track wearing out. :thumb:

Anga, I found this shop manual with a range of psi limits for tire and rim combo and it shows a 21mm interior dimension rim like the EX721 good for 1.3" to 2.7" tire, 35mm to 69mm. That makes more sense than 2.3"/60mm.

http://www.tech-mavic.com/tech-mavic...hemes/2_16.pdf

Thanks guys, keep them coming.

Exal has several rims that meet my specs.