Tyre bulge when inflated, new Got some new bicycle tyres yesterday (CONTINENTAL COMFORT CONTACT 700 x 32c CITY COMMUTER ROAD) The tyre I fitted to rear wheel seems to have a bulge in sidewall. Took it off, looks ok inside. It feels perhaps a bit thinner where its bulging. The tube seems a bit big for the tyre but I doubt this could cause it?!? and the front is ok with same tube. Previous tyres were 35c.

The bulge is perhaps 10mm diameter and 1-2mm deep. Not very visible but immediately feel it if rotating the wheel.

They were from an ebay shop and arrived twisted / folded in half so as to be much smaller to post - wire bead type. They seem to spring back into normal shape when unpacking them, no visible damage. I assume the folding may have stretched/torn a cord?

Edit, I did remove, inspect, rotate and refit the tyre. The bulge was in the same part of the tyre, so its not the tube. I inflated to about 65psi.  Recommended on the label is 70, max 85.

I did see the other post, but that is showing a used, damaged tyre, rather than a brand new one. Thanks I will be sending it back.
Something is wrong with the casing. Not safe to ride. Sometimes the come from the factory that way, who knows why. Send it back and get it exchanged. Don't risk a catastrophic blowout.