Due to the popular request, I'm opening a new thread on my experience with Velobuild wheels
I bought the frame VB-R-177 and they offered to customize the wheels as per my liking: Sapim CX Ray and Bitex 312, for extra $$$
The offered wheels were 50/27 tubeless, and the only 27mm are the gravel/CX.
Chris told me: "we suggest 25-32 tires"
That was a bad idea that ended delaying the delivery of the frame and wheels: 80 days from payment to reception
The LBS assembled the bike and put the tires on (GP5000 TL with butyl tubes)
After 350Kms, in 7 short rides, all in paved roads, a catastrophic failure in the rear rim happened:
On a 10% downhill, at ~55KPH aprox, we heard like gunshot, and my rear wheel started navigating. I was able to save it because it's a straight line descent and I was already on the brakes.
I was lucky it was the rear wheel, not the front, I was lucky it was a straight road, that I was somehow prepared to handle, and that someone with a van gave a 15km lift to the parking lot where we started the ride (otherwise, I had to wait from my clubmates to finish their ride, change clothes, load the bikes and come in my rescue).
With a reborn feeling, I paid for the beers.
WHEEL INSPECTION
The rim blew open
You can see 2 cracks starting at the spoke nipple, one rides straight on the edge of the deep profile
The tire is in perfect condition
The rim edges in the cracked spot are scratched were probably the spot that was skidding when I was braking
WARRANTY PROCESS
Now it comes the second point: Warranty from Velobuild. I wanted to do this privately, friendly and honestly.
I sent the first pictures taken on the parking lot to Chris and explained.
He asked for more pictures.
I sent 10 more: Both sides of the bike, with the broken wheel. A close up of the wheel with the tire. Both sides of the wheel. Removed the tire and pictures of the barcode and more closeups of the broken section.
Chris said looks like and accident, can I have the pictures of the bike as of today.
I replied, check the pictures, the bike has the broken wheel and is in mint condition, not even one scratch... not even one in the paint, handlbar, levers, saddle or pedals.
I also told him, check the photo metadata... All pictures taken in ~20 minutes
SILENCE for one week.
I followed up and Chris said "our engineer said it's accident or big impact". He offered a rim at half price.
EXCUSE ME... WHAT? I could have died and you are asking me to pay more for a rim and then have the wheel built? That is insulting, and I have no trust on the quality of the rims
Right now I'm at paypal dispute... They said a car run over the wheel (yeah, right, and no broken or bent spokes!)
LESSONS
Couple of lessons for me, and for whoever wants to learn:
1. Check your carbon rims as often as you can. Don't take the quality for granted
2. After sales support and warranty claims with Velobuild are not smooth processes.
3. What would have happened if, for different circumstances, you had some scratches on the paint or marks on the saddle? Doesn't the warranty count anymore?
My best guess, due to the cracks from the spoke nipple: Bad wheel construction, which is fairly probable as they don't usually work with these Sapim spokes nor Bitex hubs. That or the carbon rim is very weak