; no the rims can't be bought anymore, they were sold between 1980 and 1985/1990. I don't know if they are durable, this is the first build I do with very light aluminium rims. I'll use them for two or three trainings when they will be done, then if there's no problem, I'll give them to my father for his new bike, he will buy this frame and fork:
with a 10 speed Ultegra complete group, that should be an amazing bike!
Personnaly, I doubt the Or7 is a solid rim, but my dad ride quite slowly, smoothly and I'll tell him to take care of the wheels.
; I chose to put the spokes heads inside the flange to have a little lateral stiffness gain; the angle is bigger than with outside spokes heads, which means that the spokes will let the rim to move laterally but less than with outside spokes heads (theorically).I hope I explain well...
It should also theorically bring some more comfort. Indeed, inside spokes heads will allow the rim to move easier vertically than outside spokes heads (still thanks to the bigger angle).
But all those facts are only theorical, I doubt it happens like that really.(it does, but it is trivial).
Anyway, the con is that it brings a more uneven spoke tensure between right and left spokes, and this is not theorical!
Your picture is good for the hub, but the Or7 effective rim diameter is 616 and not 599, it should change a bit the angle. It is also a 36 spokes rims.
By the way, why do you have all these options on your spoke calculator? For the french version, there's only the spoke lenght according to the cross, there isn't the bracing angle and the different spoke tension.
I go to download the english version! NOW