I bought those xentis mark1 wheels. The front wheel has a gap in the braking surface. Is this still ok or do I have a big problem?
Anyone who knows something about that?
Thanks
Christian
Under no circumstances would I ride that wheel.
Ok, on the trainer maybe. 
Is that another hole in the brake track towards the left edge of the photo?
I’m also in the ‘err, no thanks’ category.
Looks like the weld join has separated, no way I would ride that
Not normal. Looks like the weld split (which also means the rim has somewhat separated from the carbon).
On the practical side, how would you inflate a tire on this wheel? That gap isn’t going to seal for tubeless, and any innertube would push through the gap and pop.
I’m no wheel builder or master mechanic…. BUT, looks dangerous to me. Ask your LBS. But, if they say it’s ok to ride, I’d ask a 2nd and 3rd LBS just in case. That’s how much I think everyone so far on the post is probably right…
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This doesn’t seem tubeless - seems like older non-disc (and therefore probably clincher or tubular). Which I would imagine would make the rim that much more important for the structural integrity of the wheel and braking… Also, either way the tube may get pinched… Strange how it is a clean break as opposed to ragged. But, yes I agree - no riding….
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Thanks for all this information so fast. Its a old xentis wheel from 2005 or 6.
I don’t blame you for buying or even praying that you could ride them. I remember when they came out and they were like something from the future. I really lusted after a lottery win that would let me get a set. Even now I’d love to throw a pair on my old bike that still gets used for trainer/training/loaner bike duties.
Sadly I suspect there’s no realistic way to make them safe, even if you were to throw some good money at them. But as wall art - still very much desirable.
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Try measuring the brake track thickness. Looks very worn.
seems ok