Northwest Fishing Reports

Just put a pair of Radial ST trailer tires on my single axle boat trailer.

Is it a problem to carry a Bias ply spare?
I have heard not to mix Radials and Bias plys?

It really depends on how far you're planning on running on the spare. I don't worry about a flat so much as the blow out! I tend to get out in BFE and a long ways from any tire places so I like to have all the tires the same. If I was just going a short distance I probably wouldn't care.