I have friend that I ride with on long and frequent rides that has used Shinkos - on a VStrom and later on the FJR.
He's an excellent rider and I watch him when I'm behind, at first I thought those Shinkos are pretty good and last forever, though not for all bikes - the Shinkos have lower limits on heavier bikes. While they do last a much longer than most others, the performance sacrifice is not worth it on the heavier FJR. While he pushes them to the edge on the VStrom, has has admitted that they can feel squirmy depending on the surface condition such as rough or smooth, and definitely not a good feeling on wet roads in either bike. So after trying them on the FJR, it was determined that it was not a good choice and was taking away from the FJRs capabilities, and has now moved away to Michelin PRs or Pirelli Angel IIs depending on what he finds on sale. He's OK keeping them for the lighter bikes.
I have never tried Shinkos. For me I rather stick with one tire I get to know and not mess with changes. I am riding Pirelli Angel II A Spec and have been for some time now after trying the obvious OEM Bridgestone, then Avon (couldn't balance those) but had good traction, then one set Michelin PRs, and then settled on Pirelli Angel IIs for the past 3 sets. The Pirellis were a recommendation from another riding buddy after watching him on a Connie, and after seeing how he pushes them successfully, I decided to try them.
I find the Pirellis to have excellent wet traction and I'm quite comfortable with them on any surface, they are predictable and have a fair lifespan. I run 36~38 in front and 40~42 on back depending on the load.
In our group, the riding style is 'spirited'
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