Found a screw up in the recessed part of my rear tire where I doubt it can be plugged?

Both tires are standard Harley/Dunlop. I would like to go with Commanders but can't afford front (which does not need to be replaced - good tread) and rear at the same time.

Ok to mix or should I just get another Dunlop to keep them matched. I would replace the front with a Commander when the time comes

 

I have had mixed tires many times as long as they are both bias or radials they are fine.

 

I've mixed a 402 with metz880, and a 402 with an e3 and never had a problem. brand doesn't bother me but type does i won't mix a bias and radial.

 

Ya this!

 

Ok Michelins are bias but can't find a thing on the Dunlop site that tells what they are

 

if their stock,402,407,408 or american elite they should be bias for a harley.i believe there is a r in the size and load #"s on the sidewall if it radial.