When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I've been unsuccessful in finding anyone who has a direct fit replacement spare. This is a topic that has been discussed quite a bit and after reading countless threads I have yet to find anywhere where a member has found direct replacement replacement rubber. I've tried locating a replacement tire locally though all the tire shops I could find for my '86, and have come up empty handed.
This may be the only option to having a "new" spare reside in the rear tub. It's not cheap, but it solves the problem of good spare vs. questionable spare.
Yes new replacement spare tires are available, for the later C4s anyway. In April 2017 I bought this from Tire Rack: T155/70R-17 CONTINENTAL CST 17
Not sure what size your stock spare is so maybe not applicable but thought I'd chime in here.
I can confirm Tire Rack sells a direct sized replacement for a ‘91. Not cheap, but available. It will mount on the rim and fit in the carrier.
My tire shop tried to find an as-close-as possible regular tire, but it was a little too wide to fit in the carrier in the highest position. So, I returned the tire and went with the space saver from Tire Rack.
I also keep a small battery air pump and plug kit/needle nose pliers in the car for typical nails, etc. The spare is for an unrepairable blow out.
For my 96 I bought a used, but new production Subaru spare wheel complete with tire. I can’t remember which Subaru (Forester I believe) it was for, but the spare tires were the same size. Think it was about $65 total including shipping from eBay and $10 locally to have the tire pulled off the Subaru rim and put on my 96 spare rim.
Glad I got it too, because a few weeks later I picked up a nail and could actually hear the air rushing out while I was stopped at a light with the windows down.
When I had my Ebay Tire mounted I had the shop use bead sealer on both sides. Helps to keep the 60 psi in. Cleans up easy if it has to be dismounted. Dan