Velo-ORANGE has lots of nice interesting stuff but... 2 criticisms:
Their French thread headset has a stack height of 41mm. The large majority of reasonable quality bikes with metric headsets that were imported into the US came with Stronglight P3 headsets with a 33mm stack height!
Those are the bikes most in need of replacement headsets.
There are still plenty of replacement Campy, Stronglight S5 Super Competition, Zeus, and other makes of metric thread headsets available for the pro level bikes that used 39mm - 42mm stack height headsets.
Secondly, I bought a Velo-ORANGE metric bottom bracket that had been lightly used. The person I bought it from wasn't very bike savvy and when they removed it the fixed cup came off of the cartridge. They switched sides on the cups.
I've messed with BB cartridges since the early Phil Wood units back in the mid 1970s.
I removed the fixed cup from the wrong side and was surprised to see how cheaply the cartridge was made. It consists of 2 ball bearings with outward facing seals pressed onto the spindle with a very thin aluminum tube that fits inside the aluminum cups, and flush with the bearings!
It acts more like a dust shield than an integral part of the cartridge. The aluminum cups slide over the bearings and the ends of the sleeve holding it in place.
Notice how thin the aluminum cups are and the thin plastic sleeve at the bottom which holds the cup in place. This construction makes for a very light BB but I'm not so sure how robust it will be under a heavy load.
Very cheaply made!
Compare the Velo-ORANGE cartridge with a standard construction cartridge with a steel center shown below.
I saw some French threaded cups to fit IRD cartridge BBs listed on eBay. I used an IRD cartridge BB a few years ago and it seemed to be on a par with the better quality Shimano cartridges.
Follow up...
To give Velo-ORANGE the benefit of the doubt, so far I haven't seen any reports of failures on their BBs.
I suspect that the Velo-ORANGE bottom brackets are made by IRD (or Tange who makes them for IRD). The IRD QB-75 has alloy cups and "body" with an average weight of 235g.
The IRD bottom bracket that I installed several years ago was the less expensive QB-55 model with steel cups. I weigh ~225 Lbs. so I wouldn't feel comfortable on the all alloy BB if it were in a bike that I planned to ride a lot, especially with lots of out of saddle hill climbing.
Chas. verktyg