It has become necessary for me to put new tires on my 1985 K100RT
The present (standard) tires have dry-rotted due to long storage.
Should I replace with the same standard tire or should I go with the radial tire.
What are the advantages of each.
Thanks
Richard1

You'll likely not find radials tyres in the original sizes your motorbike came with, unless you're keen to squeeze a wider tyre onto a narrow rim, which does defeat the purpose to some degree - less rubber on the road. There's a lot written about this issue here. Have a look around in the posts. You'll find useful info about it. I use Pirelli's Sport Demon bias ply tyre in 110/80V18 front and 140/80VB18 rear. These work well. Others have good ideas on a variety of tyre options as well.

Thanks Two wheels Better. It seems as though radials for my bike are hard to find. At this point I don't want to improvise. I just want to get the bike on the road with a good set of rubber. So far, all I have done is work on the bike. Now I just want to take it for a ride. All you folks on the forum seem to love them and I hope I will also.
Richard1