You're right; there are only a few sizes of radial Elites and none of them are spec'd for Harley touring bikes. The Elites on my bike are definitely bias ply tires.

http://www.dunlopmotorcycletires.com...merican-elite/

 

The "B" means "Bias", and Harley sizes of AE's are all bias.

 

I agree , I misquoted my tire size as an R out of habit and was told AE's only come in bias ply for my bike , I believe the Michelin's are also only bias ply for touring Harley's.