On good advice, on my TR6, after 17 years, I finally replaced my old 185 Michelins with new Michelin Defenders - 205/70/15. Rides a bit better and steers much better. Only problem - found out I was missing a spoke on right rear rim. I have 4 choices;1) replace the rim (expensive), 2) switch with my spare rim which appears to be in better shape, 3) If it's possible to buy a new spoke, replace the missing spoke which means stripping off the plastic or whatever is inside the tire protecting the tube and hoping the new rim band will be just as good or 4) just drive it as is. Is there any problem with option number 4?