Ordered 28, got a 23. OK?

[Schooner]

My aging hybrid 700 35 tire was bulging off the rim and needed changing so I plumped for a thinner one, ordering a continental 28c, from halfords. It arrived with a new tube (decent bundle price) very quickly. I was surprised how skinny it was but the continental packaging said 700 28c so I didn't think too much about it.
So I put it on today and it sure was skinny, just like my road bike me thought. Then when I got to pumping I double checked the recommended pressure on the side wall and saw it said 700 23c.
That will explain why it is so skinny.
Anyway, it rides OK (for a 2 minute test), and seems to sit on the rim OK. My question is will it be OK, out might it pop of the rim with lateral stress? I fancy keeping it but I don't fancy it causing me to go down.
Any advice would be most welcome.

 

[rusky]

I wouldn't risk it!

 

[MisterStan]

Surely the 700c bit is the important bit, is the other tire a different size?

 

[rusky]

Surely the 700c bit is the important bit, is the other tire a different size?

Not only. Yes, if the tyre isn't 700c then it won't fit the rim as the diameter will be wrong.If it is too wide or too narrow then this is likely to not seat correctly.

 

[Sittingduck]

Lol. What rims are on that puppy? I mean how wide are they, exactly...?

 

[GrasB]

What's the inside rim to rim distance of the wheel? A general rule of thumb is you need about 3mm narrower internal width than nominal tyre width.

 

[oldfatfool]

I'm guessing if it came with a 35c as std it won't be happy with a 23.